Home / 105,153,675.20-157,589,521.78-81,838,571.40

Finding the Fourth Proportional to 105,153,675.20, 157,589,521.78 and 81,838,571.40

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Solution

The fourth proportional to 105,153,675.20, 157,589,521.78 and 81,838,571.40 is: 122,648,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,153,675.20 : 157,589,521.78 = 81,838,571.40 : x
  2. Step 2: Convert to fraction form
    105,153,675.20/157,589,521.78 = 81,838,571.40/x
  3. Step 3: Cross multiply
    105,153,675.20x = 157,589,521.78 × 81,838,571.40
  4. Step 4: Simplify right side
    105,153,675.20x = 12,896,901,329,675,194
  5. Step 5: Solve for x
    x = 12,896,901,329,675,194/105,153,675.20
  6. Step 6: Final answer
    x = 122,648,127.18

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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.