Home / 747,357,143.70-1,121,035,715.55-402,983,375.70

Finding the Fourth Proportional to 747,357,143.70, 1,121,035,715.55 and 402,983,375.70

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Solution

The fourth proportional to 747,357,143.70, 1,121,035,715.55 and 402,983,375.70 is: 604,475,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,357,143.70 : 1,121,035,715.55 = 402,983,375.70 : x
  2. Step 2: Convert to fraction form
    747,357,143.70/1,121,035,715.55 = 402,983,375.70/x
  3. Step 3: Cross multiply
    747,357,143.70x = 1,121,035,715.55 × 402,983,375.70
  4. Step 4: Simplify right side
    747,357,143.70x = 451,758,756,932,603,968
  5. Step 5: Solve for x
    x = 451,758,756,932,603,968/747,357,143.70
  6. Step 6: Final answer
    x = 604,475,063.55

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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.