Home / 1,254,156,019.52-1,730,845,587.88-689,740,361.36

Finding the Fourth Proportional to 1,254,156,019.52, 1,730,845,587.88 and 689,740,361.36

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Solution

The fourth proportional to 1,254,156,019.52, 1,730,845,587.88 and 689,740,361.36 is: 951,902,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,156,019.52 : 1,730,845,587.88 = 689,740,361.36 : x
  2. Step 2: Convert to fraction form
    1,254,156,019.52/1,730,845,587.88 = 689,740,361.36/x
  3. Step 3: Cross multiply
    1,254,156,019.52x = 1,730,845,587.88 × 689,740,361.36
  4. Step 4: Simplify right side
    1,254,156,019.52x = 1,193,834,061,242,712,832
  5. Step 5: Solve for x
    x = 1,193,834,061,242,712,832/1,254,156,019.52
  6. Step 6: Final answer
    x = 951,902,349.20

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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.