Home / 1,215,137,126.52-1,676,897,285.22-658,220,168.52

Finding the Fourth Proportional to 1,215,137,126.52, 1,676,897,285.22 and 658,220,168.52

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Solution

The fourth proportional to 1,215,137,126.52, 1,676,897,285.22 and 658,220,168.52 is: 908,348,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,137,126.52 : 1,676,897,285.22 = 658,220,168.52 : x
  2. Step 2: Convert to fraction form
    1,215,137,126.52/1,676,897,285.22 = 658,220,168.52/x
  3. Step 3: Cross multiply
    1,215,137,126.52x = 1,676,897,285.22 × 658,220,168.52
  4. Step 4: Simplify right side
    1,215,137,126.52x = 1,103,767,613,668,238,848
  5. Step 5: Solve for x
    x = 1,103,767,613,668,238,848/1,215,137,126.52
  6. Step 6: Final answer
    x = 908,348,193.45

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1.5x scale

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.