Home / 42,686,971.13-64,020,873.54-19,635,766.96

Finding the Fourth Proportional to 42,686,971.13, 64,020,873.54 and 19,635,766.96

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Solution

The fourth proportional to 42,686,971.13, 64,020,873.54 and 19,635,766.96 is: 29,449,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686,971.13 : 64,020,873.54 = 19,635,766.96 : x
  2. Step 2: Convert to fraction form
    42,686,971.13/64,020,873.54 = 19,635,766.96/x
  3. Step 3: Cross multiply
    42,686,971.13x = 64,020,873.54 × 19,635,766.96
  4. Step 4: Simplify right side
    42,686,971.13x = 1,257,098,953,407,070.25
  5. Step 5: Solve for x
    x = 1,257,098,953,407,070.25/42,686,971.13
  6. Step 6: Final answer
    x = 29,449,242.24

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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.