Home / 105,153,678.70-157,589,527.02-81,838,574.90

Finding the Fourth Proportional to 105,153,678.70, 157,589,527.02 and 81,838,574.90

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Solution

The fourth proportional to 105,153,678.70, 157,589,527.02 and 81,838,574.90 is: 122,648,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,153,678.70 : 157,589,527.02 = 81,838,574.90 : x
  2. Step 2: Convert to fraction form
    105,153,678.70/157,589,527.02 = 81,838,574.90/x
  3. Step 3: Cross multiply
    105,153,678.70x = 157,589,527.02 × 81,838,574.90
  4. Step 4: Simplify right side
    105,153,678.70x = 12,896,902,310,481,846
  5. Step 5: Solve for x
    x = 12,896,902,310,481,846/105,153,678.70
  6. Step 6: Final answer
    x = 122,648,132.43

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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.