Home / 77,038,428.24-115,572,758.52-28,516,706.64

Finding the Fourth Proportional to 77,038,428.24, 115,572,758.52 and 28,516,706.64

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Solution

The fourth proportional to 77,038,428.24, 115,572,758.52 and 28,516,706.64 is: 42,780,655.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,038,428.24 : 115,572,758.52 = 28,516,706.64 : x
  2. Step 2: Convert to fraction form
    77,038,428.24/115,572,758.52 = 28,516,706.64/x
  3. Step 3: Cross multiply
    77,038,428.24x = 115,572,758.52 × 28,516,706.64
  4. Step 4: Simplify right side
    77,038,428.24x = 3,295,754,450,290,400.50
  5. Step 5: Solve for x
    x = 3,295,754,450,290,400.50/77,038,428.24
  6. Step 6: Final answer
    x = 42,780,655.39

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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.