Home / 1,220,346,095.80-1,830,519,143.70-402,415,094.20

Finding the Fourth Proportional to 1,220,346,095.80, 1,830,519,143.70 and 402,415,094.20

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Solution

The fourth proportional to 1,220,346,095.80, 1,830,519,143.70 and 402,415,094.20 is: 603,622,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,346,095.80 : 1,830,519,143.70 = 402,415,094.20 : x
  2. Step 2: Convert to fraction form
    1,220,346,095.80/1,830,519,143.70 = 402,415,094.20/x
  3. Step 3: Cross multiply
    1,220,346,095.80x = 1,830,519,143.70 × 402,415,094.20
  4. Step 4: Simplify right side
    1,220,346,095.80x = 736,628,533,646,938,880
  5. Step 5: Solve for x
    x = 736,628,533,646,938,880/1,220,346,095.80
  6. Step 6: Final answer
    x = 603,622,641.30

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.