Home / 10,461,721.60-15,692,582.40-9,160,019.20

Finding the Fourth Proportional to 10,461,721.60, 15,692,582.40 and 9,160,019.20

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Solution

The fourth proportional to 10,461,721.60, 15,692,582.40 and 9,160,019.20 is: 13,740,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,461,721.60 : 15,692,582.40 = 9,160,019.20 : x
  2. Step 2: Convert to fraction form
    10,461,721.60/15,692,582.40 = 9,160,019.20/x
  3. Step 3: Cross multiply
    10,461,721.60x = 15,692,582.40 × 9,160,019.20
  4. Step 4: Simplify right side
    10,461,721.60x = 143,744,356,081,582.06
  5. Step 5: Solve for x
    x = 143,744,356,081,582.06/10,461,721.60
  6. Step 6: Final answer
    x = 13,740,028.80

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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.