Home / 813,987,774.69-1,221,483,875.13-377,207,045.61

Finding the Fourth Proportional to 813,987,774.69, 1,221,483,875.13 and 377,207,045.61

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Solution

The fourth proportional to 813,987,774.69, 1,221,483,875.13 and 377,207,045.61 is: 566,043,297.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,987,774.69 : 1,221,483,875.13 = 377,207,045.61 : x
  2. Step 2: Convert to fraction form
    813,987,774.69/1,221,483,875.13 = 377,207,045.61/x
  3. Step 3: Cross multiply
    813,987,774.69x = 1,221,483,875.13 × 377,207,045.61
  4. Step 4: Simplify right side
    813,987,774.69x = 460,752,323,798,041,536
  5. Step 5: Solve for x
    x = 460,752,323,798,041,536/813,987,774.69
  6. Step 6: Final answer
    x = 566,043,297.12

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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.