Home / 191,712,187.20-287,568,280.80-159,400,574.40

Finding the Fourth Proportional to 191,712,187.20, 287,568,280.80 and 159,400,574.40

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Solution

The fourth proportional to 191,712,187.20, 287,568,280.80 and 159,400,574.40 is: 239,100,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,712,187.20 : 287,568,280.80 = 159,400,574.40 : x
  2. Step 2: Convert to fraction form
    191,712,187.20/287,568,280.80 = 159,400,574.40/x
  3. Step 3: Cross multiply
    191,712,187.20x = 287,568,280.80 × 159,400,574.40
  4. Step 4: Simplify right side
    191,712,187.20x = 45,838,549,138,740,496
  5. Step 5: Solve for x
    x = 45,838,549,138,740,496/191,712,187.20
  6. Step 6: Final answer
    x = 239,100,861.60

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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.