Home / 1,386,083,529.29-1,912,889,117.86-783,044,999.79

Finding the Fourth Proportional to 1,386,083,529.29, 1,912,889,117.86 and 783,044,999.79

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Solution

The fourth proportional to 1,386,083,529.29, 1,912,889,117.86 and 783,044,999.79 is: 1,080,655,117.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,083,529.29 : 1,912,889,117.86 = 783,044,999.79 : x
  2. Step 2: Convert to fraction form
    1,386,083,529.29/1,912,889,117.86 = 783,044,999.79/x
  3. Step 3: Cross multiply
    1,386,083,529.29x = 1,912,889,117.86 × 783,044,999.79
  4. Step 4: Simplify right side
    1,386,083,529.29x = 1,497,878,258,902,106,880
  5. Step 5: Solve for x
    x = 1,497,878,258,902,106,880/1,386,083,529.29
  6. Step 6: Final answer
    x = 1,080,655,117.28

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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.