Home / 78,918,590.18-108,909,948.40-43,157,133.38

Finding the Fourth Proportional to 78,918,590.18, 108,909,948.40 and 43,157,133.38

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Solution

The fourth proportional to 78,918,590.18, 108,909,948.40 and 43,157,133.38 is: 59,558,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,918,590.18 : 108,909,948.40 = 43,157,133.38 : x
  2. Step 2: Convert to fraction form
    78,918,590.18/108,909,948.40 = 43,157,133.38/x
  3. Step 3: Cross multiply
    78,918,590.18x = 108,909,948.40 × 43,157,133.38
  4. Step 4: Simplify right side
    78,918,590.18x = 4,700,241,169,507,718
  5. Step 5: Solve for x
    x = 4,700,241,169,507,718/78,918,590.18
  6. Step 6: Final answer
    x = 59,558,098.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.