Home / 191,909,543.20-287,864,314.80-127,286,317.60

Finding the Fourth Proportional to 191,909,543.20, 287,864,314.80 and 127,286,317.60

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Solution

The fourth proportional to 191,909,543.20, 287,864,314.80 and 127,286,317.60 is: 190,929,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,909,543.20 : 287,864,314.80 = 127,286,317.60 : x
  2. Step 2: Convert to fraction form
    191,909,543.20/287,864,314.80 = 127,286,317.60/x
  3. Step 3: Cross multiply
    191,909,543.20x = 287,864,314.80 × 127,286,317.60
  4. Step 4: Simplify right side
    191,909,543.20x = 36,641,188,599,339,184
  5. Step 5: Solve for x
    x = 36,641,188,599,339,184/191,909,543.20
  6. Step 6: Final answer
    x = 190,929,476.40

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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.