Home / 142,011,026,520.24-195,975,322,253.64-76,905,959,195.28

Finding the Fourth Proportional to 142,011,026,520.24, 195,975,322,253.64 and 76,905,959,195.28

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Solution

The fourth proportional to 142,011,026,520.24, 195,975,322,253.64 and 76,905,959,195.28 is: 106,130,280,907.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,011,026,520.24 : 195,975,322,253.64 = 76,905,959,195.28 : x
  2. Step 2: Convert to fraction form
    142,011,026,520.24/195,975,322,253.64 = 76,905,959,195.28/x
  3. Step 3: Cross multiply
    142,011,026,520.24x = 195,975,322,253.64 × 76,905,959,195.28
  4. Step 4: Simplify right side
    142,011,026,520.24x = 15,071,670,136,520,287,715,328
  5. Step 5: Solve for x
    x = 15,071,670,136,520,287,715,328/142,011,026,520.24
  6. Step 6: Final answer
    x = 106,130,280,907.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.