Home / 977,585,936.80-1,468,079,516.40-518,420,912.80

Finding the Fourth Proportional to 977,585,936.80, 1,468,079,516.40 and 518,420,912.80

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Solution

The fourth proportional to 977,585,936.80, 1,468,079,516.40 and 518,420,912.80 is: 778,533,215.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,585,936.80 : 1,468,079,516.40 = 518,420,912.80 : x
  2. Step 2: Convert to fraction form
    977,585,936.80/1,468,079,516.40 = 518,420,912.80/x
  3. Step 3: Cross multiply
    977,585,936.80x = 1,468,079,516.40 × 518,420,912.80
  4. Step 4: Simplify right side
    977,585,936.80x = 761,083,122,955,070,592
  5. Step 5: Solve for x
    x = 761,083,122,955,070,592/977,585,936.80
  6. Step 6: Final answer
    x = 778,533,215.65

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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.