Home / 103,821,953.60-155,732,930.40-86,941,812.80

Finding the Fourth Proportional to 103,821,953.60, 155,732,930.40 and 86,941,812.80

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Solution

The fourth proportional to 103,821,953.60, 155,732,930.40 and 86,941,812.80 is: 130,412,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,821,953.60 : 155,732,930.40 = 86,941,812.80 : x
  2. Step 2: Convert to fraction form
    103,821,953.60/155,732,930.40 = 86,941,812.80/x
  3. Step 3: Cross multiply
    103,821,953.60x = 155,732,930.40 × 86,941,812.80
  4. Step 4: Simplify right side
    103,821,953.60x = 13,539,703,281,632,230
  5. Step 5: Solve for x
    x = 13,539,703,281,632,230/103,821,953.60
  6. Step 6: Final answer
    x = 130,412,719.20

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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.