Home / 155,564,389.01-214,672,468.10-85,002,421.35

Finding the Fourth Proportional to 155,564,389.01, 214,672,468.10 and 85,002,421.35

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Solution

The fourth proportional to 155,564,389.01, 214,672,468.10 and 85,002,421.35 is: 117,299,850.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,564,389.01 : 214,672,468.10 = 85,002,421.35 : x
  2. Step 2: Convert to fraction form
    155,564,389.01/214,672,468.10 = 85,002,421.35/x
  3. Step 3: Cross multiply
    155,564,389.01x = 214,672,468.10 × 85,002,421.35
  4. Step 4: Simplify right side
    155,564,389.01x = 18,247,679,585,680,632
  5. Step 5: Solve for x
    x = 18,247,679,585,680,632/155,564,389.01
  6. Step 6: Final answer
    x = 117,299,850.58

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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.