Home / 842,385,984.64-1,262,894,397.36-351,465,176.32

Finding the Fourth Proportional to 842,385,984.64, 1,262,894,397.36 and 351,465,176.32

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Solution

The fourth proportional to 842,385,984.64, 1,262,894,397.36 and 351,465,176.32 is: 526,912,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,385,984.64 : 1,262,894,397.36 = 351,465,176.32 : x
  2. Step 2: Convert to fraction form
    842,385,984.64/1,262,894,397.36 = 351,465,176.32/x
  3. Step 3: Cross multiply
    842,385,984.64x = 1,262,894,397.36 × 351,465,176.32
  4. Step 4: Simplify right side
    842,385,984.64x = 443,863,402,041,672,512
  5. Step 5: Solve for x
    x = 443,863,402,041,672,512/842,385,984.64
  6. Step 6: Final answer
    x = 526,912,140.20

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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.