Home / 72,503,145.40-108,754,718.10-40,254,518.20

Finding the Fourth Proportional to 72,503,145.40, 108,754,718.10 and 40,254,518.20

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Solution

The fourth proportional to 72,503,145.40, 108,754,718.10 and 40,254,518.20 is: 60,381,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,503,145.40 : 108,754,718.10 = 40,254,518.20 : x
  2. Step 2: Convert to fraction form
    72,503,145.40/108,754,718.10 = 40,254,518.20/x
  3. Step 3: Cross multiply
    72,503,145.40x = 108,754,718.10 × 40,254,518.20
  4. Step 4: Simplify right side
    72,503,145.40x = 4,377,868,779,092,319.50
  5. Step 5: Solve for x
    x = 4,377,868,779,092,319.50/72,503,145.40
  6. Step 6: Final answer
    x = 60,381,777.30

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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.