Home / 1,206,678,005.40-1,810,017,008.10-655,679,976.60

Finding the Fourth Proportional to 1,206,678,005.40, 1,810,017,008.10 and 655,679,976.60

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Solution

The fourth proportional to 1,206,678,005.40, 1,810,017,008.10 and 655,679,976.60 is: 983,519,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,678,005.40 : 1,810,017,008.10 = 655,679,976.60 : x
  2. Step 2: Convert to fraction form
    1,206,678,005.40/1,810,017,008.10 = 655,679,976.60/x
  3. Step 3: Cross multiply
    1,206,678,005.40x = 1,810,017,008.10 × 655,679,976.60
  4. Step 4: Simplify right side
    1,206,678,005.40x = 1,186,791,909,516,610,048
  5. Step 5: Solve for x
    x = 1,186,791,909,516,610,048/1,206,678,005.40
  6. Step 6: Final answer
    x = 983,519,964.90

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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.