Home / 1,216,346,810.16-1,678,623,772.67-680,466,507.50

Finding the Fourth Proportional to 1,216,346,810.16, 1,678,623,772.67 and 680,466,507.50

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Solution

The fourth proportional to 1,216,346,810.16, 1,678,623,772.67 and 680,466,507.50 is: 939,080,241.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,346,810.16 : 1,678,623,772.67 = 680,466,507.50 : x
  2. Step 2: Convert to fraction form
    1,216,346,810.16/1,678,623,772.67 = 680,466,507.50/x
  3. Step 3: Cross multiply
    1,216,346,810.16x = 1,678,623,772.67 × 680,466,507.50
  4. Step 4: Simplify right side
    1,216,346,810.16x = 1,142,247,256,001,714,304
  5. Step 5: Solve for x
    x = 1,142,247,256,001,714,304/1,216,346,810.16
  6. Step 6: Final answer
    x = 939,080,241.31

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.