Home / 979,018,516.40-1,465,126,552.20-897,389,178.80

Finding the Fourth Proportional to 979,018,516.40, 1,465,126,552.20 and 897,389,178.80

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Solution

The fourth proportional to 979,018,516.40, 1,465,126,552.20 and 897,389,178.80 is: 1,342,966,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,018,516.40 : 1,465,126,552.20 = 897,389,178.80 : x
  2. Step 2: Convert to fraction form
    979,018,516.40/1,465,126,552.20 = 897,389,178.80/x
  3. Step 3: Cross multiply
    979,018,516.40x = 1,465,126,552.20 × 897,389,178.80
  4. Step 4: Simplify right side
    979,018,516.40x = 1,314,788,713,516,833,280
  5. Step 5: Solve for x
    x = 1,314,788,713,516,833,280/979,018,516.40
  6. Step 6: Final answer
    x = 1,342,966,135.46

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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.