Home / 399,255,862.12-598,348,467.52-310,731,325.40

Finding the Fourth Proportional to 399,255,862.12, 598,348,467.52 and 310,731,325.40

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Solution

The fourth proportional to 399,255,862.12, 598,348,467.52 and 310,731,325.40 is: 465,680,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,255,862.12 : 598,348,467.52 = 310,731,325.40 : x
  2. Step 2: Convert to fraction form
    399,255,862.12/598,348,467.52 = 310,731,325.40/x
  3. Step 3: Cross multiply
    399,255,862.12x = 598,348,467.52 × 310,731,325.40
  4. Step 4: Simplify right side
    399,255,862.12x = 185,925,612,364,267,488
  5. Step 5: Solve for x
    x = 185,925,612,364,267,488/399,255,862.12
  6. Step 6: Final answer
    x = 465,680,356.90

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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.