Home / 90,720,246.90-136,080,370.35-82,828,348.05

Finding the Fourth Proportional to 90,720,246.90, 136,080,370.35 and 82,828,348.05

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Solution

The fourth proportional to 90,720,246.90, 136,080,370.35 and 82,828,348.05 is: 124,242,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,720,246.90 : 136,080,370.35 = 82,828,348.05 : x
  2. Step 2: Convert to fraction form
    90,720,246.90/136,080,370.35 = 82,828,348.05/x
  3. Step 3: Cross multiply
    90,720,246.90x = 136,080,370.35 × 82,828,348.05
  4. Step 4: Simplify right side
    90,720,246.90x = 11,271,312,278,122,700
  5. Step 5: Solve for x
    x = 11,271,312,278,122,700/90,720,246.90
  6. Step 6: Final answer
    x = 124,242,522.08

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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.