Home / 78,730,664.20-118,114,658.70-40,398,094.60

Finding the Fourth Proportional to 78,730,664.20, 118,114,658.70 and 40,398,094.60

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Solution

The fourth proportional to 78,730,664.20, 118,114,658.70 and 40,398,094.60 is: 60,606,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,730,664.20 : 118,114,658.70 = 40,398,094.60 : x
  2. Step 2: Convert to fraction form
    78,730,664.20/118,114,658.70 = 40,398,094.60/x
  3. Step 3: Cross multiply
    78,730,664.20x = 118,114,658.70 × 40,398,094.60
  4. Step 4: Simplify right side
    78,730,664.20x = 4,771,607,155,809,313
  5. Step 5: Solve for x
    x = 4,771,607,155,809,313/78,730,664.20
  6. Step 6: Final answer
    x = 60,606,717.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.