Home / 690,863,678.92-1,036,581,951.66-302,486,048.20

Finding the Fourth Proportional to 690,863,678.92, 1,036,581,951.66 and 302,486,048.20

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Solution

The fourth proportional to 690,863,678.92, 1,036,581,951.66 and 302,486,048.20 is: 453,854,483.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,863,678.92 : 1,036,581,951.66 = 302,486,048.20 : x
  2. Step 2: Convert to fraction form
    690,863,678.92/1,036,581,951.66 = 302,486,048.20/x
  3. Step 3: Cross multiply
    690,863,678.92x = 1,036,581,951.66 × 302,486,048.20
  4. Step 4: Simplify right side
    690,863,678.92x = 313,551,578,193,076,800
  5. Step 5: Solve for x
    x = 313,551,578,193,076,800/690,863,678.92
  6. Step 6: Final answer
    x = 453,854,483.54

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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.