Home / 646,737,657.70-970,248,204.15-319,370,001.70

Finding the Fourth Proportional to 646,737,657.70, 970,248,204.15 and 319,370,001.70

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Solution

The fourth proportional to 646,737,657.70, 970,248,204.15 and 319,370,001.70 is: 479,124,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,737,657.70 : 970,248,204.15 = 319,370,001.70 : x
  2. Step 2: Convert to fraction form
    646,737,657.70/970,248,204.15 = 319,370,001.70/x
  3. Step 3: Cross multiply
    646,737,657.70x = 970,248,204.15 × 319,370,001.70
  4. Step 4: Simplify right side
    646,737,657.70x = 309,868,170,608,807,424
  5. Step 5: Solve for x
    x = 309,868,170,608,807,424/646,737,657.70
  6. Step 6: Final answer
    x = 479,124,985.10

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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.