Home / 765,762,143.31-1,148,932,702.68-299,756,612.49

Finding the Fourth Proportional to 765,762,143.31, 1,148,932,702.68 and 299,756,612.49

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Solution

The fourth proportional to 765,762,143.31, 1,148,932,702.68 and 299,756,612.49 is: 449,748,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,762,143.31 : 1,148,932,702.68 = 299,756,612.49 : x
  2. Step 2: Convert to fraction form
    765,762,143.31/1,148,932,702.68 = 299,756,612.49/x
  3. Step 3: Cross multiply
    765,762,143.31x = 1,148,932,702.68 × 299,756,612.49
  4. Step 4: Simplify right side
    765,762,143.31x = 344,400,174,934,337,152
  5. Step 5: Solve for x
    x = 344,400,174,934,337,152/765,762,143.31
  6. Step 6: Final answer
    x = 449,748,238.33

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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.