Home / 261,333,207.74-392,058,868.02-86,455,831.52

Finding the Fourth Proportional to 261,333,207.74, 392,058,868.02 and 86,455,831.52

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Solution

The fourth proportional to 261,333,207.74, 392,058,868.02 and 86,455,831.52 is: 129,703,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,333,207.74 : 392,058,868.02 = 86,455,831.52 : x
  2. Step 2: Convert to fraction form
    261,333,207.74/392,058,868.02 = 86,455,831.52/x
  3. Step 3: Cross multiply
    261,333,207.74x = 392,058,868.02 × 86,455,831.52
  4. Step 4: Simplify right side
    261,333,207.74x = 33,895,775,439,459,032
  5. Step 5: Solve for x
    x = 33,895,775,439,459,032/261,333,207.74
  6. Step 6: Final answer
    x = 129,703,284.68

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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.