Home / 139,084,967.40-208,655,444.70-48,189,748.20

Finding the Fourth Proportional to 139,084,967.40, 208,655,444.70 and 48,189,748.20

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Solution

The fourth proportional to 139,084,967.40, 208,655,444.70 and 48,189,748.20 is: 72,294,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,084,967.40 : 208,655,444.70 = 48,189,748.20 : x
  2. Step 2: Convert to fraction form
    139,084,967.40/208,655,444.70 = 48,189,748.20/x
  3. Step 3: Cross multiply
    139,084,967.40x = 208,655,444.70 × 48,189,748.20
  4. Step 4: Simplify right side
    139,084,967.40x = 10,055,053,340,652,024
  5. Step 5: Solve for x
    x = 10,055,053,340,652,024/139,084,967.40
  6. Step 6: Final answer
    x = 72,294,321.44

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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.