Home / 690,863,681.92-1,036,581,956.16-302,486,051.20

Finding the Fourth Proportional to 690,863,681.92, 1,036,581,956.16 and 302,486,051.20

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Solution

The fourth proportional to 690,863,681.92, 1,036,581,956.16 and 302,486,051.20 is: 453,854,488.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,863,681.92 : 1,036,581,956.16 = 302,486,051.20 : x
  2. Step 2: Convert to fraction form
    690,863,681.92/1,036,581,956.16 = 302,486,051.20/x
  3. Step 3: Cross multiply
    690,863,681.92x = 1,036,581,956.16 × 302,486,051.20
  4. Step 4: Simplify right side
    690,863,681.92x = 313,551,582,664,009,920
  5. Step 5: Solve for x
    x = 313,551,582,664,009,920/690,863,681.92
  6. Step 6: Final answer
    x = 453,854,488.04

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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.