Home / 486,030,870.69-670,508,862.27-284,985,125.64

Finding the Fourth Proportional to 486,030,870.69, 670,508,862.27 and 284,985,125.64

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Solution

The fourth proportional to 486,030,870.69, 670,508,862.27 and 284,985,125.64 is: 393,154,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,030,870.69 : 670,508,862.27 = 284,985,125.64 : x
  2. Step 2: Convert to fraction form
    486,030,870.69/670,508,862.27 = 284,985,125.64/x
  3. Step 3: Cross multiply
    486,030,870.69x = 670,508,862.27 × 284,985,125.64
  4. Step 4: Simplify right side
    486,030,870.69x = 191,085,052,356,749,376
  5. Step 5: Solve for x
    x = 191,085,052,356,749,376/486,030,870.69
  6. Step 6: Final answer
    x = 393,154,146.95

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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.