Home / 720,072,137.70-1,080,108,206.55-708,593,012.10

Finding the Fourth Proportional to 720,072,137.70, 1,080,108,206.55 and 708,593,012.10

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Solution

The fourth proportional to 720,072,137.70, 1,080,108,206.55 and 708,593,012.10 is: 1,062,889,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,072,137.70 : 1,080,108,206.55 = 708,593,012.10 : x
  2. Step 2: Convert to fraction form
    720,072,137.70/1,080,108,206.55 = 708,593,012.10/x
  3. Step 3: Cross multiply
    720,072,137.70x = 1,080,108,206.55 × 708,593,012.10
  4. Step 4: Simplify right side
    720,072,137.70x = 765,357,127,473,193,472
  5. Step 5: Solve for x
    x = 765,357,127,473,193,472/720,072,137.70
  6. Step 6: Final answer
    x = 1,062,889,518.15

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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.