Home / 85,054,278.20-127,675,895.70-52,742,665.40

Finding the Fourth Proportional to 85,054,278.20, 127,675,895.70 and 52,742,665.40

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Solution

The fourth proportional to 85,054,278.20, 127,675,895.70 and 52,742,665.40 is: 79,172,584.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,054,278.20 : 127,675,895.70 = 52,742,665.40 : x
  2. Step 2: Convert to fraction form
    85,054,278.20/127,675,895.70 = 52,742,665.40/x
  3. Step 3: Cross multiply
    85,054,278.20x = 127,675,895.70 × 52,742,665.40
  4. Step 4: Simplify right side
    85,054,278.20x = 6,733,967,046,550,399
  5. Step 5: Solve for x
    x = 6,733,967,046,550,399/85,054,278.20
  6. Step 6: Final answer
    x = 79,172,584.72

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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.