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Finding the Fourth Proportional to 522,290,448.30, 783,435,672.45 and 369,235,440.30

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Solution

The fourth proportional to 522,290,448.30, 783,435,672.45 and 369,235,440.30 is: 553,853,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,290,448.30 : 783,435,672.45 = 369,235,440.30 : x
  2. Step 2: Convert to fraction form
    522,290,448.30/783,435,672.45 = 369,235,440.30/x
  3. Step 3: Cross multiply
    522,290,448.30x = 783,435,672.45 × 369,235,440.30
  4. Step 4: Simplify right side
    522,290,448.30x = 289,272,215,463,802,368
  5. Step 5: Solve for x
    x = 289,272,215,463,802,368/522,290,448.30
  6. Step 6: Final answer
    x = 553,853,160.45

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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.