Home / 80,877,734.40-121,316,601.60-40,482,969.60

Finding the Fourth Proportional to 80,877,734.40, 121,316,601.60 and 40,482,969.60

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Solution

The fourth proportional to 80,877,734.40, 121,316,601.60 and 40,482,969.60 is: 60,724,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,877,734.40 : 121,316,601.60 = 40,482,969.60 : x
  2. Step 2: Convert to fraction form
    80,877,734.40/121,316,601.60 = 40,482,969.60/x
  3. Step 3: Cross multiply
    80,877,734.40x = 121,316,601.60 × 40,482,969.60
  4. Step 4: Simplify right side
    80,877,734.40x = 4,911,256,294,548,111
  5. Step 5: Solve for x
    x = 4,911,256,294,548,111/80,877,734.40
  6. Step 6: Final answer
    x = 60,724,454.40

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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.