Home / 77,002,107.18-115,501,921.47-18,710,246.58

Finding the Fourth Proportional to 77,002,107.18, 115,501,921.47 and 18,710,246.58

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Solution

The fourth proportional to 77,002,107.18, 115,501,921.47 and 18,710,246.58 is: 28,065,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,002,107.18 : 115,501,921.47 = 18,710,246.58 : x
  2. Step 2: Convert to fraction form
    77,002,107.18/115,501,921.47 = 18,710,246.58/x
  3. Step 3: Cross multiply
    77,002,107.18x = 115,501,921.47 × 18,710,246.58
  4. Step 4: Simplify right side
    77,002,107.18x = 2,161,069,431,167,495.75
  5. Step 5: Solve for x
    x = 2,161,069,431,167,495.75/77,002,107.18
  6. Step 6: Final answer
    x = 28,065,068.74

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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.