Home / 76,015,541.40-114,023,312.10-66,449,603.40

Finding the Fourth Proportional to 76,015,541.40, 114,023,312.10 and 66,449,603.40

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Solution

The fourth proportional to 76,015,541.40, 114,023,312.10 and 66,449,603.40 is: 99,674,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,015,541.40 : 114,023,312.10 = 66,449,603.40 : x
  2. Step 2: Convert to fraction form
    76,015,541.40/114,023,312.10 = 66,449,603.40/x
  3. Step 3: Cross multiply
    76,015,541.40x = 114,023,312.10 × 66,449,603.40
  4. Step 4: Simplify right side
    76,015,541.40x = 7,576,803,867,399,421
  5. Step 5: Solve for x
    x = 7,576,803,867,399,421/76,015,541.40
  6. Step 6: Final answer
    x = 99,674,405.10

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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.