Home / 717,502,037.70-990,152,824.48-387,477,176.70

Finding the Fourth Proportional to 717,502,037.70, 990,152,824.48 and 387,477,176.70

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Solution

The fourth proportional to 717,502,037.70, 990,152,824.48 and 387,477,176.70 is: 534,718,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,502,037.70 : 990,152,824.48 = 387,477,176.70 : x
  2. Step 2: Convert to fraction form
    717,502,037.70/990,152,824.48 = 387,477,176.70/x
  3. Step 3: Cross multiply
    717,502,037.70x = 990,152,824.48 × 387,477,176.70
  4. Step 4: Simplify right side
    717,502,037.70x = 383,661,620,931,041,024
  5. Step 5: Solve for x
    x = 383,661,620,931,041,024/717,502,037.70
  6. Step 6: Final answer
    x = 534,718,510.57

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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.