Home / 612,397,887,209.45-845,106,137,781.40-338,041,139,807.78

Finding the Fourth Proportional to 612,397,887,209.45, 845,106,137,781.40 and 338,041,139,807.78

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Solution

The fourth proportional to 612,397,887,209.45, 845,106,137,781.40 and 338,041,139,807.78 is: 466,495,146,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,397,887,209.45 : 845,106,137,781.40 = 338,041,139,807.78 : x
  2. Step 2: Convert to fraction form
    612,397,887,209.45/845,106,137,781.40 = 338,041,139,807.78/x
  3. Step 3: Cross multiply
    612,397,887,209.45x = 845,106,137,781.40 × 338,041,139,807.78
  4. Step 4: Simplify right side
    612,397,887,209.45x = 285,680,642,074,175,267,143,680
  5. Step 5: Solve for x
    x = 285,680,642,074,175,267,143,680/612,397,887,209.45
  6. Step 6: Final answer
    x = 466,495,146,441.40

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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.