Home / 86,508,021.60-129,762,032.40-83,484,712.80

Finding the Fourth Proportional to 86,508,021.60, 129,762,032.40 and 83,484,712.80

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Solution

The fourth proportional to 86,508,021.60, 129,762,032.40 and 83,484,712.80 is: 125,227,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,508,021.60 : 129,762,032.40 = 83,484,712.80 : x
  2. Step 2: Convert to fraction form
    86,508,021.60/129,762,032.40 = 83,484,712.80/x
  3. Step 3: Cross multiply
    86,508,021.60x = 129,762,032.40 × 83,484,712.80
  4. Step 4: Simplify right side
    86,508,021.60x = 10,833,146,007,258,294
  5. Step 5: Solve for x
    x = 10,833,146,007,258,294/86,508,021.60
  6. Step 6: Final answer
    x = 125,227,069.20

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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.