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Finding the Fourth Proportional to 522,290,438.30, 783,435,657.45 and 369,235,430.30

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Solution

The fourth proportional to 522,290,438.30, 783,435,657.45 and 369,235,430.30 is: 553,853,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,290,438.30 : 783,435,657.45 = 369,235,430.30 : x
  2. Step 2: Convert to fraction form
    522,290,438.30/783,435,657.45 = 369,235,430.30/x
  3. Step 3: Cross multiply
    522,290,438.30x = 783,435,657.45 × 369,235,430.30
  4. Step 4: Simplify right side
    522,290,438.30x = 289,272,202,090,914,176
  5. Step 5: Solve for x
    x = 289,272,202,090,914,176/522,290,438.30
  6. Step 6: Final answer
    x = 553,853,145.45

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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.