Home / 170,127,247.20-255,190,870.80-79,260,021.60

Finding the Fourth Proportional to 170,127,247.20, 255,190,870.80 and 79,260,021.60

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Solution

The fourth proportional to 170,127,247.20, 255,190,870.80 and 79,260,021.60 is: 118,890,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,127,247.20 : 255,190,870.80 = 79,260,021.60 : x
  2. Step 2: Convert to fraction form
    170,127,247.20/255,190,870.80 = 79,260,021.60/x
  3. Step 3: Cross multiply
    170,127,247.20x = 255,190,870.80 × 79,260,021.60
  4. Step 4: Simplify right side
    170,127,247.20x = 20,226,433,931,730,808
  5. Step 5: Solve for x
    x = 20,226,433,931,730,808/170,127,247.20
  6. Step 6: Final answer
    x = 118,890,032.40

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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.