Home / 157,407,419,934.72-235,921,430,681.28-72,299,771,755.20

Finding the Fourth Proportional to 157,407,419,934.72, 235,921,430,681.28 and 72,299,771,755.20

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Solution

The fourth proportional to 157,407,419,934.72, 235,921,430,681.28 and 72,299,771,755.20 is: 108,362,525,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,407,419,934.72 : 235,921,430,681.28 = 72,299,771,755.20 : x
  2. Step 2: Convert to fraction form
    157,407,419,934.72/235,921,430,681.28 = 72,299,771,755.20/x
  3. Step 3: Cross multiply
    157,407,419,934.72x = 235,921,430,681.28 × 72,299,771,755.20
  4. Step 4: Simplify right side
    157,407,419,934.72x = 17,057,065,590,416,782,393,344
  5. Step 5: Solve for x
    x = 17,057,065,590,416,782,393,344/157,407,419,934.72
  6. Step 6: Final answer
    x = 108,362,525,715.06

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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.