Home / 72,403,886.40-108,605,829.60-64,467,700.80

Finding the Fourth Proportional to 72,403,886.40, 108,605,829.60 and 64,467,700.80

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Solution

The fourth proportional to 72,403,886.40, 108,605,829.60 and 64,467,700.80 is: 96,701,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,403,886.40 : 108,605,829.60 = 64,467,700.80 : x
  2. Step 2: Convert to fraction form
    72,403,886.40/108,605,829.60 = 64,467,700.80/x
  3. Step 3: Cross multiply
    72,403,886.40x = 108,605,829.60 × 64,467,700.80
  4. Step 4: Simplify right side
    72,403,886.40x = 7,001,568,127,788,583
  5. Step 5: Solve for x
    x = 7,001,568,127,788,583/72,403,886.40
  6. Step 6: Final answer
    x = 96,701,551.20

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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.