Home / 105,368,108.28-157,847,656.32-77,651,689.20

Finding the Fourth Proportional to 105,368,108.28, 157,847,656.32 and 77,651,689.20

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Solution

The fourth proportional to 105,368,108.28, 157,847,656.32 and 77,651,689.20 is: 116,326,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,368,108.28 : 157,847,656.32 = 77,651,689.20 : x
  2. Step 2: Convert to fraction form
    105,368,108.28/157,847,656.32 = 77,651,689.20/x
  3. Step 3: Cross multiply
    105,368,108.28x = 157,847,656.32 × 77,651,689.20
  4. Step 4: Simplify right side
    105,368,108.28x = 12,257,137,149,509,056
  5. Step 5: Solve for x
    x = 12,257,137,149,509,056/105,368,108.28
  6. Step 6: Final answer
    x = 116,326,821.75

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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.