Home / 559,872,081.20-839,808,121.80-521,608,329.20

Finding the Fourth Proportional to 559,872,081.20, 839,808,121.80 and 521,608,329.20

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Solution

The fourth proportional to 559,872,081.20, 839,808,121.80 and 521,608,329.20 is: 782,412,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,081.20 : 839,808,121.80 = 521,608,329.20 : x
  2. Step 2: Convert to fraction form
    559,872,081.20/839,808,121.80 = 521,608,329.20/x
  3. Step 3: Cross multiply
    559,872,081.20x = 839,808,121.80 × 521,608,329.20
  4. Step 4: Simplify right side
    559,872,081.20x = 438,050,911,260,688,064
  5. Step 5: Solve for x
    x = 438,050,911,260,688,064/559,872,081.20
  6. Step 6: Final answer
    x = 782,412,493.80

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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.