Home / 31,159,428-42,999,218.46-17,408,495.40

Finding the Fourth Proportional to 31,159,428, 42,999,218.46 and 17,408,495.40

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Solution

The fourth proportional to 31,159,428, 42,999,218.46 and 17,408,495.40 is: 24,023,281.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159,428 : 42,999,218.46 = 17,408,495.40 : x
  2. Step 2: Convert to fraction form
    31,159,428/42,999,218.46 = 17,408,495.40/x
  3. Step 3: Cross multiply
    31,159,428x = 42,999,218.46 × 17,408,495.40
  4. Step 4: Simplify right side
    31,159,428x = 748,551,696,764,505
  5. Step 5: Solve for x
    x = 748,551,696,764,505/31,159,428
  6. Step 6: Final answer
    x = 24,023,281.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.