Home / 8,559,868,384.80-11,770,729,710.75-7,428,874,619.30

Finding the Fourth Proportional to 8,559,868,384.80, 11,770,729,710.75 and 7,428,874,619.30

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Solution

The fourth proportional to 8,559,868,384.80, 11,770,729,710.75 and 7,428,874,619.30 is: 10,215,492,957.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559,868,384.80 : 11,770,729,710.75 = 7,428,874,619.30 : x
  2. Step 2: Convert to fraction form
    8,559,868,384.80/11,770,729,710.75 = 7,428,874,619.30/x
  3. Step 3: Cross multiply
    8,559,868,384.80x = 11,770,729,710.75 × 7,428,874,619.30
  4. Step 4: Simplify right side
    8,559,868,384.80x = 87,443,275,198,772,248,576
  5. Step 5: Solve for x
    x = 87,443,275,198,772,248,576/8,559,868,384.80
  6. Step 6: Final answer
    x = 10,215,492,957.12

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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.