Home / 607,394,830.70-912,545,731.67-389,472,132.62

Finding the Fourth Proportional to 607,394,830.70, 912,545,731.67 and 389,472,132.62

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Solution

The fourth proportional to 607,394,830.70, 912,545,731.67 and 389,472,132.62 is: 585,140,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,394,830.70 : 912,545,731.67 = 389,472,132.62 : x
  2. Step 2: Convert to fraction form
    607,394,830.70/912,545,731.67 = 389,472,132.62/x
  3. Step 3: Cross multiply
    607,394,830.70x = 912,545,731.67 × 389,472,132.62
  4. Step 4: Simplify right side
    607,394,830.70x = 355,411,132,226,793,152
  5. Step 5: Solve for x
    x = 355,411,132,226,793,152/607,394,830.70
  6. Step 6: Final answer
    x = 585,140,199.20

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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.