Home / 141,782,842.80-212,674,264.20-90,722,516.40

Finding the Fourth Proportional to 141,782,842.80, 212,674,264.20 and 90,722,516.40

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Solution

The fourth proportional to 141,782,842.80, 212,674,264.20 and 90,722,516.40 is: 136,083,774.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,782,842.80 : 212,674,264.20 = 90,722,516.40 : x
  2. Step 2: Convert to fraction form
    141,782,842.80/212,674,264.20 = 90,722,516.40/x
  3. Step 3: Cross multiply
    141,782,842.80x = 212,674,264.20 × 90,722,516.40
  4. Step 4: Simplify right side
    141,782,842.80x = 19,294,344,421,742,432
  5. Step 5: Solve for x
    x = 19,294,344,421,742,432/141,782,842.80
  6. Step 6: Final answer
    x = 136,083,774.60

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1.5x scale

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.