Home / 1,255,308,681.69-1,731,604,616.51-784,593,083.61

Finding the Fourth Proportional to 1,255,308,681.69, 1,731,604,616.51 and 784,593,083.61

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Solution

The fourth proportional to 1,255,308,681.69, 1,731,604,616.51 and 784,593,083.61 is: 1,082,287,588.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,308,681.69 : 1,731,604,616.51 = 784,593,083.61 : x
  2. Step 2: Convert to fraction form
    1,255,308,681.69/1,731,604,616.51 = 784,593,083.61/x
  3. Step 3: Cross multiply
    1,255,308,681.69x = 1,731,604,616.51 × 784,593,083.61
  4. Step 4: Simplify right side
    1,255,308,681.69x = 1,358,605,005,656,969,472
  5. Step 5: Solve for x
    x = 1,358,605,005,656,969,472/1,255,308,681.69
  6. Step 6: Final answer
    x = 1,082,287,588.28

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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.