Home / 191,650,218.80-287,475,328.20-137,230,660.40

Finding the Fourth Proportional to 191,650,218.80, 287,475,328.20 and 137,230,660.40

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Solution

The fourth proportional to 191,650,218.80, 287,475,328.20 and 137,230,660.40 is: 205,845,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,650,218.80 : 287,475,328.20 = 137,230,660.40 : x
  2. Step 2: Convert to fraction form
    191,650,218.80/287,475,328.20 = 137,230,660.40/x
  3. Step 3: Cross multiply
    191,650,218.80x = 287,475,328.20 × 137,230,660.40
  4. Step 4: Simplify right side
    191,650,218.80x = 39,450,429,137,592,744
  5. Step 5: Solve for x
    x = 39,450,429,137,592,744/191,650,218.80
  6. Step 6: Final answer
    x = 205,845,990.60

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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.