Home / 105,153,693.41-157,589,549.06-81,838,589.02

Finding the Fourth Proportional to 105,153,693.41, 157,589,549.06 and 81,838,589.02

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Solution

The fourth proportional to 105,153,693.41, 157,589,549.06 and 81,838,589.02 is: 122,648,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,153,693.41 : 157,589,549.06 = 81,838,589.02 : x
  2. Step 2: Convert to fraction form
    105,153,693.41/157,589,549.06 = 81,838,589.02/x
  3. Step 3: Cross multiply
    105,153,693.41x = 157,589,549.06 × 81,838,589.02
  4. Step 4: Simplify right side
    105,153,693.41x = 12,896,906,338,565,300
  5. Step 5: Solve for x
    x = 12,896,906,338,565,300/105,153,693.41
  6. Step 6: Final answer
    x = 122,648,153.57

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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.