Home / 1,275,563,214.47-1,760,277,221.35-688,852,350.47

Finding the Fourth Proportional to 1,275,563,214.47, 1,760,277,221.35 and 688,852,350.47

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Solution

The fourth proportional to 1,275,563,214.47, 1,760,277,221.35 and 688,852,350.47 is: 950,616,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,563,214.47 : 1,760,277,221.35 = 688,852,350.47 : x
  2. Step 2: Convert to fraction form
    1,275,563,214.47/1,760,277,221.35 = 688,852,350.47/x
  3. Step 3: Cross multiply
    1,275,563,214.47x = 1,760,277,221.35 × 688,852,350.47
  4. Step 4: Simplify right side
    1,275,563,214.47x = 1,212,571,101,408,426,496
  5. Step 5: Solve for x
    x = 1,212,571,101,408,426,496/1,275,563,214.47
  6. Step 6: Final answer
    x = 950,616,235.75

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Double scale
Find fourth proportional to 1,275,563,215.47, 1,760,277,222.73 and 688,852,351.47
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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.