Home / 159,035,706,019.02-238,551,986,963.94-72,861,513,142.64

Finding the Fourth Proportional to 159,035,706,019.02, 238,551,986,963.94 and 72,861,513,142.64

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Solution

The fourth proportional to 159,035,706,019.02, 238,551,986,963.94 and 72,861,513,142.64 is: 109,291,549,479.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,035,706,019.02 : 238,551,986,963.94 = 72,861,513,142.64 : x
  2. Step 2: Convert to fraction form
    159,035,706,019.02/238,551,986,963.94 = 72,861,513,142.64/x
  3. Step 3: Cross multiply
    159,035,706,019.02x = 238,551,986,963.94 × 72,861,513,142.64
  4. Step 4: Simplify right side
    159,035,706,019.02x = 17,381,258,733,376,000,491,520
  5. Step 5: Solve for x
    x = 17,381,258,733,376,000,491,520/159,035,706,019.02
  6. Step 6: Final answer
    x = 109,291,549,479.44

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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.