Home / 120,348,038.70-166,080,956.31-65,343,895.20

Finding the Fourth Proportional to 120,348,038.70, 166,080,956.31 and 65,343,895.20

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Solution

The fourth proportional to 120,348,038.70, 166,080,956.31 and 65,343,895.20 is: 90,174,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348,038.70 : 166,080,956.31 = 65,343,895.20 : x
  2. Step 2: Convert to fraction form
    120,348,038.70/166,080,956.31 = 65,343,895.20/x
  3. Step 3: Cross multiply
    120,348,038.70x = 166,080,956.31 × 65,343,895.20
  4. Step 4: Simplify right side
    120,348,038.70x = 10,852,376,603,836,420
  5. Step 5: Solve for x
    x = 10,852,376,603,836,420/120,348,038.70
  6. Step 6: Final answer
    x = 90,174,935.30

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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.