Home / 145,002,779.34-200,108,166.02-89,280,346.21

Finding the Fourth Proportional to 145,002,779.34, 200,108,166.02 and 89,280,346.21

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Solution

The fourth proportional to 145,002,779.34, 200,108,166.02 and 89,280,346.21 is: 123,209,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,002,779.34 : 200,108,166.02 = 89,280,346.21 : x
  2. Step 2: Convert to fraction form
    145,002,779.34/200,108,166.02 = 89,280,346.21/x
  3. Step 3: Cross multiply
    145,002,779.34x = 200,108,166.02 × 89,280,346.21
  4. Step 4: Simplify right side
    145,002,779.34x = 17,865,726,341,102,778
  5. Step 5: Solve for x
    x = 17,865,726,341,102,778/145,002,779.34
  6. Step 6: Final answer
    x = 123,209,544.14

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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.