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Finding the Fourth Proportional to 64,656,010.60, 96,984,015.90 and 57,640,989.40

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Solution

The fourth proportional to 64,656,010.60, 96,984,015.90 and 57,640,989.40 is: 86,461,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,656,010.60 : 96,984,015.90 = 57,640,989.40 : x
  2. Step 2: Convert to fraction form
    64,656,010.60/96,984,015.90 = 57,640,989.40/x
  3. Step 3: Cross multiply
    64,656,010.60x = 96,984,015.90 × 57,640,989.40
  4. Step 4: Simplify right side
    64,656,010.60x = 5,590,254,632,461,332
  5. Step 5: Solve for x
    x = 5,590,254,632,461,332/64,656,010.60
  6. Step 6: Final answer
    x = 86,461,484.10

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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.