Home / 29,289,128.04-40,423,116.89-18,129,203.10

Finding the Fourth Proportional to 29,289,128.04, 40,423,116.89 and 18,129,203.10

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Solution

The fourth proportional to 29,289,128.04, 40,423,116.89 and 18,129,203.10 is: 25,020,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,289,128.04 : 40,423,116.89 = 18,129,203.10 : x
  2. Step 2: Convert to fraction form
    29,289,128.04/40,423,116.89 = 18,129,203.10/x
  3. Step 3: Cross multiply
    29,289,128.04x = 40,423,116.89 × 18,129,203.10
  4. Step 4: Simplify right side
    29,289,128.04x = 732,838,896,079,173.38
  5. Step 5: Solve for x
    x = 732,838,896,079,173.38/29,289,128.04
  6. Step 6: Final answer
    x = 25,020,850.57

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Double scale
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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.