Home / 130,808,805,042.89-180,549,737,760.14-85,196,741,609.18

Finding the Fourth Proportional to 130,808,805,042.89, 180,549,737,760.14 and 85,196,741,609.18

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Solution

The fourth proportional to 130,808,805,042.89, 180,549,737,760.14 and 85,196,741,609.18 is: 117,593,378,752.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,808,805,042.89 : 180,549,737,760.14 = 85,196,741,609.18 : x
  2. Step 2: Convert to fraction form
    130,808,805,042.89/180,549,737,760.14 = 85,196,741,609.18/x
  3. Step 3: Cross multiply
    130,808,805,042.89x = 180,549,737,760.14 × 85,196,741,609.18
  4. Step 4: Simplify right side
    130,808,805,042.89x = 15,382,249,355,555,857,498,112
  5. Step 5: Solve for x
    x = 15,382,249,355,555,857,498,112/130,808,805,042.89
  6. Step 6: Final answer
    x = 117,593,378,752.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.