Home / 191,506,015.20-287,259,022.80-76,508,306.40

Finding the Fourth Proportional to 191,506,015.20, 287,259,022.80 and 76,508,306.40

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Solution

The fourth proportional to 191,506,015.20, 287,259,022.80 and 76,508,306.40 is: 114,762,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,506,015.20 : 287,259,022.80 = 76,508,306.40 : x
  2. Step 2: Convert to fraction form
    191,506,015.20/287,259,022.80 = 76,508,306.40/x
  3. Step 3: Cross multiply
    191,506,015.20x = 287,259,022.80 × 76,508,306.40
  4. Step 4: Simplify right side
    191,506,015.20x = 21,977,701,332,546,988
  5. Step 5: Solve for x
    x = 21,977,701,332,546,988/191,506,015.20
  6. Step 6: Final answer
    x = 114,762,459.60

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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.