Home / 141,783,336.80-212,675,005.20-90,723,010.40

Finding the Fourth Proportional to 141,783,336.80, 212,675,005.20 and 90,723,010.40

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Solution

The fourth proportional to 141,783,336.80, 212,675,005.20 and 90,723,010.40 is: 136,084,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,783,336.80 : 212,675,005.20 = 90,723,010.40 : x
  2. Step 2: Convert to fraction form
    141,783,336.80/212,675,005.20 = 90,723,010.40/x
  3. Step 3: Cross multiply
    141,783,336.80x = 212,675,005.20 × 90,723,010.40
  4. Step 4: Simplify right side
    141,783,336.80x = 19,294,516,708,579,656
  5. Step 5: Solve for x
    x = 19,294,516,708,579,656/141,783,336.80
  6. Step 6: Final answer
    x = 136,084,515.60

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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.