Home / 120,838,643.10-181,044,513.45-116,842,556.70

Finding the Fourth Proportional to 120,838,643.10, 181,044,513.45 and 116,842,556.70

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Solution

The fourth proportional to 120,838,643.10, 181,044,513.45 and 116,842,556.70 is: 175,057,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,838,643.10 : 181,044,513.45 = 116,842,556.70 : x
  2. Step 2: Convert to fraction form
    120,838,643.10/181,044,513.45 = 116,842,556.70/x
  3. Step 3: Cross multiply
    120,838,643.10x = 181,044,513.45 × 116,842,556.70
  4. Step 4: Simplify right side
    120,838,643.10x = 21,153,703,828,005,536
  5. Step 5: Solve for x
    x = 21,153,703,828,005,536/120,838,643.10
  6. Step 6: Final answer
    x = 175,057,442.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.