Home / 85,213,952.20-127,746,278.70-51,148,851.40

Finding the Fourth Proportional to 85,213,952.20, 127,746,278.70 and 51,148,851.40

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Solution

The fourth proportional to 85,213,952.20, 127,746,278.70 and 51,148,851.40 is: 76,678,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,213,952.20 : 127,746,278.70 = 51,148,851.40 : x
  2. Step 2: Convert to fraction form
    85,213,952.20/127,746,278.70 = 51,148,851.40/x
  3. Step 3: Cross multiply
    85,213,952.20x = 127,746,278.70 × 51,148,851.40
  4. Step 4: Simplify right side
    85,213,952.20x = 6,534,075,426,129,285
  5. Step 5: Solve for x
    x = 6,534,075,426,129,285/85,213,952.20
  6. Step 6: Final answer
    x = 76,678,469.40

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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.