Home / 85,164,031.80-127,746,047.70-74,078,566.20

Finding the Fourth Proportional to 85,164,031.80, 127,746,047.70 and 74,078,566.20

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Solution

The fourth proportional to 85,164,031.80, 127,746,047.70 and 74,078,566.20 is: 111,117,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164,031.80 : 127,746,047.70 = 74,078,566.20 : x
  2. Step 2: Convert to fraction form
    85,164,031.80/127,746,047.70 = 74,078,566.20/x
  3. Step 3: Cross multiply
    85,164,031.80x = 127,746,047.70 × 74,078,566.20
  4. Step 4: Simplify right side
    85,164,031.80x = 9,463,244,051,332,808
  5. Step 5: Solve for x
    x = 9,463,244,051,332,808/85,164,031.80
  6. Step 6: Final answer
    x = 111,117,849.30

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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.