Home / 438,876,710.40-658,294,070.40-147,715,276.80

Finding the Fourth Proportional to 438,876,710.40, 658,294,070.40 and 147,715,276.80

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Solution

The fourth proportional to 438,876,710.40, 658,294,070.40 and 147,715,276.80 is: 221,565,848.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,876,710.40 : 658,294,070.40 = 147,715,276.80 : x
  2. Step 2: Convert to fraction form
    438,876,710.40/658,294,070.40 = 147,715,276.80/x
  3. Step 3: Cross multiply
    438,876,710.40x = 658,294,070.40 × 147,715,276.80
  4. Step 4: Simplify right side
    438,876,710.40x = 97,240,090,824,934,688
  5. Step 5: Solve for x
    x = 97,240,090,824,934,688/438,876,710.40
  6. Step 6: Final answer
    x = 221,565,848.72

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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.