Home / 1,246,780,208.16-1,720,558,702.80-689,886,727.20

Finding the Fourth Proportional to 1,246,780,208.16, 1,720,558,702.80 and 689,886,727.20

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Solution

The fourth proportional to 1,246,780,208.16, 1,720,558,702.80 and 689,886,727.20 is: 952,044,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,780,208.16 : 1,720,558,702.80 = 689,886,727.20 : x
  2. Step 2: Convert to fraction form
    1,246,780,208.16/1,720,558,702.80 = 689,886,727.20/x
  3. Step 3: Cross multiply
    1,246,780,208.16x = 1,720,558,702.80 × 689,886,727.20
  4. Step 4: Simplify right side
    1,246,780,208.16x = 1,186,990,612,430,169,600
  5. Step 5: Solve for x
    x = 1,186,990,612,430,169,600/1,246,780,208.16
  6. Step 6: Final answer
    x = 952,044,798.80

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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.