Home / 142,019,979.70-213,029,969.55-103,756,227.70

Finding the Fourth Proportional to 142,019,979.70, 213,029,969.55 and 103,756,227.70

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Solution

The fourth proportional to 142,019,979.70, 213,029,969.55 and 103,756,227.70 is: 155,634,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,019,979.70 : 213,029,969.55 = 103,756,227.70 : x
  2. Step 2: Convert to fraction form
    142,019,979.70/213,029,969.55 = 103,756,227.70/x
  3. Step 3: Cross multiply
    142,019,979.70x = 213,029,969.55 × 103,756,227.70
  4. Step 4: Simplify right side
    142,019,979.70x = 22,103,186,027,553,868
  5. Step 5: Solve for x
    x = 22,103,186,027,553,868/142,019,979.70
  6. Step 6: Final answer
    x = 155,634,341.55

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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.