Home / 78,266,613.60-116,872,889.76-63,918,165.60

Finding the Fourth Proportional to 78,266,613.60, 116,872,889.76 and 63,918,165.60

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Solution

The fourth proportional to 78,266,613.60, 116,872,889.76 and 63,918,165.60 is: 95,446,837.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,266,613.60 : 116,872,889.76 = 63,918,165.60 : x
  2. Step 2: Convert to fraction form
    78,266,613.60/116,872,889.76 = 63,918,165.60/x
  3. Step 3: Cross multiply
    78,266,613.60x = 116,872,889.76 × 63,918,165.60
  4. Step 4: Simplify right side
    78,266,613.60x = 7,470,300,721,830,225
  5. Step 5: Solve for x
    x = 7,470,300,721,830,225/78,266,613.60
  6. Step 6: Final answer
    x = 95,446,837.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.