Home / 3,838,428,545.80-5,757,642,818.70-3,218,555,763.40

Finding the Fourth Proportional to 3,838,428,545.80, 5,757,642,818.70 and 3,218,555,763.40

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Solution

The fourth proportional to 3,838,428,545.80, 5,757,642,818.70 and 3,218,555,763.40 is: 4,827,833,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838,428,545.80 : 5,757,642,818.70 = 3,218,555,763.40 : x
  2. Step 2: Convert to fraction form
    3,838,428,545.80/5,757,642,818.70 = 3,218,555,763.40/x
  3. Step 3: Cross multiply
    3,838,428,545.80x = 5,757,642,818.70 × 3,218,555,763.40
  4. Step 4: Simplify right side
    3,838,428,545.80x = 18,531,294,477,725,507,584
  5. Step 5: Solve for x
    x = 18,531,294,477,725,507,584/3,838,428,545.80
  6. Step 6: Final answer
    x = 4,827,833,645.10

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Double scale
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1.5x scale

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.