Home / 747,954,019.60-1,121,931,029.40-472,455,005.20

Finding the Fourth Proportional to 747,954,019.60, 1,121,931,029.40 and 472,455,005.20

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Solution

The fourth proportional to 747,954,019.60, 1,121,931,029.40 and 472,455,005.20 is: 708,682,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,954,019.60 : 1,121,931,029.40 = 472,455,005.20 : x
  2. Step 2: Convert to fraction form
    747,954,019.60/1,121,931,029.40 = 472,455,005.20/x
  3. Step 3: Cross multiply
    747,954,019.60x = 1,121,931,029.40 × 472,455,005.20
  4. Step 4: Simplify right side
    747,954,019.60x = 530,061,930,329,218,368
  5. Step 5: Solve for x
    x = 530,061,930,329,218,368/747,954,019.60
  6. Step 6: Final answer
    x = 708,682,507.80

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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.