Home / 465,277,085.70-642,080,438.02-256,432,729.92

Finding the Fourth Proportional to 465,277,085.70, 642,080,438.02 and 256,432,729.92

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Solution

The fourth proportional to 465,277,085.70, 642,080,438.02 and 256,432,729.92 is: 353,876,097.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,277,085.70 : 642,080,438.02 = 256,432,729.92 : x
  2. Step 2: Convert to fraction form
    465,277,085.70/642,080,438.02 = 256,432,729.92/x
  3. Step 3: Cross multiply
    465,277,085.70x = 642,080,438.02 × 256,432,729.92
  4. Step 4: Simplify right side
    465,277,085.70x = 164,650,439,549,697,952
  5. Step 5: Solve for x
    x = 164,650,439,549,697,952/465,277,085.70
  6. Step 6: Final answer
    x = 353,876,097.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.