Home / 10,152,411.10-15,228,616.65-7,129,102.30

Finding the Fourth Proportional to 10,152,411.10, 15,228,616.65 and 7,129,102.30

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Solution

The fourth proportional to 10,152,411.10, 15,228,616.65 and 7,129,102.30 is: 10,693,653.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152,411.10 : 15,228,616.65 = 7,129,102.30 : x
  2. Step 2: Convert to fraction form
    10,152,411.10/15,228,616.65 = 7,129,102.30/x
  3. Step 3: Cross multiply
    10,152,411.10x = 15,228,616.65 × 7,129,102.30
  4. Step 4: Simplify right side
    10,152,411.10x = 108,566,365,985,333.30
  5. Step 5: Solve for x
    x = 108,566,365,985,333.30/10,152,411.10
  6. Step 6: Final answer
    x = 10,693,653.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.