Home / 84,995,571,123.40-127,574,986,022.70-72,587,911,808.20

Finding the Fourth Proportional to 84,995,571,123.40, 127,574,986,022.70 and 72,587,911,808.20

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Solution

The fourth proportional to 84,995,571,123.40, 127,574,986,022.70 and 72,587,911,808.20 is: 108,951,580,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,995,571,123.40 : 127,574,986,022.70 = 72,587,911,808.20 : x
  2. Step 2: Convert to fraction form
    84,995,571,123.40/127,574,986,022.70 = 72,587,911,808.20/x
  3. Step 3: Cross multiply
    84,995,571,123.40x = 127,574,986,022.70 × 72,587,911,808.20
  4. Step 4: Simplify right side
    84,995,571,123.40x = 9,260,401,834,348,094,947,328
  5. Step 5: Solve for x
    x = 9,260,401,834,348,094,947,328/84,995,571,123.40
  6. Step 6: Final answer
    x = 108,951,580,793.59

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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.