Home / 748,964,499.40-1,123,450,248.30-264,290,307.40

Finding the Fourth Proportional to 748,964,499.40, 1,123,450,248.30 and 264,290,307.40

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Solution

The fourth proportional to 748,964,499.40, 1,123,450,248.30 and 264,290,307.40 is: 396,436,695.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,964,499.40 : 1,123,450,248.30 = 264,290,307.40 : x
  2. Step 2: Convert to fraction form
    748,964,499.40/1,123,450,248.30 = 264,290,307.40/x
  3. Step 3: Cross multiply
    748,964,499.40x = 1,123,450,248.30 × 264,290,307.40
  4. Step 4: Simplify right side
    748,964,499.40x = 296,917,011,471,813,312
  5. Step 5: Solve for x
    x = 296,917,011,471,813,312/748,964,499.40
  6. Step 6: Final answer
    x = 396,436,695.88

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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.