Home / 1,246,780,047.16-1,720,558,480.62-689,886,566.20

Finding the Fourth Proportional to 1,246,780,047.16, 1,720,558,480.62 and 689,886,566.20

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Solution

The fourth proportional to 1,246,780,047.16, 1,720,558,480.62 and 689,886,566.20 is: 952,044,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,780,047.16 : 1,720,558,480.62 = 689,886,566.20 : x
  2. Step 2: Convert to fraction form
    1,246,780,047.16/1,720,558,480.62 = 689,886,566.20/x
  3. Step 3: Cross multiply
    1,246,780,047.16x = 1,720,558,480.62 × 689,886,566.20
  4. Step 4: Simplify right side
    1,246,780,047.16x = 1,186,990,182,141,221,120
  5. Step 5: Solve for x
    x = 1,186,990,182,141,221,120/1,246,780,047.16
  6. Step 6: Final answer
    x = 952,044,576.62

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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.