Home / 646,725,703.20-970,230,272.40-319,358,047.20

Finding the Fourth Proportional to 646,725,703.20, 970,230,272.40 and 319,358,047.20

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Solution

The fourth proportional to 646,725,703.20, 970,230,272.40 and 319,358,047.20 is: 479,107,052.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,725,703.20 : 970,230,272.40 = 319,358,047.20 : x
  2. Step 2: Convert to fraction form
    646,725,703.20/970,230,272.40 = 319,358,047.20/x
  3. Step 3: Cross multiply
    646,725,703.20x = 970,230,272.40 × 319,358,047.20
  4. Step 4: Simplify right side
    646,725,703.20x = 309,850,845,127,988,032
  5. Step 5: Solve for x
    x = 309,850,845,127,988,032/646,725,703.20
  6. Step 6: Final answer
    x = 479,107,052.02

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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.