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Finding the Fourth Proportional to 518,323,063.65, 777,484,595.48 and 503,974,156.65

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Solution

The fourth proportional to 518,323,063.65, 777,484,595.48 and 503,974,156.65 is: 755,961,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,323,063.65 : 777,484,595.48 = 503,974,156.65 : x
  2. Step 2: Convert to fraction form
    518,323,063.65/777,484,595.48 = 503,974,156.65/x
  3. Step 3: Cross multiply
    518,323,063.65x = 777,484,595.48 × 503,974,156.65
  4. Step 4: Simplify right side
    518,323,063.65x = 391,832,143,312,879,552
  5. Step 5: Solve for x
    x = 391,832,143,312,879,552/518,323,063.65
  6. Step 6: Final answer
    x = 755,961,234.98

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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.