Home / 60,579,684.70-90,870,045.45-20,190,168.70

Finding the Fourth Proportional to 60,579,684.70, 90,870,045.45 and 20,190,168.70

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Solution

The fourth proportional to 60,579,684.70, 90,870,045.45 and 20,190,168.70 is: 30,285,425.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,579,684.70 : 90,870,045.45 = 20,190,168.70 : x
  2. Step 2: Convert to fraction form
    60,579,684.70/90,870,045.45 = 20,190,168.70/x
  3. Step 3: Cross multiply
    60,579,684.70x = 90,870,045.45 × 20,190,168.70
  4. Step 4: Simplify right side
    60,579,684.70x = 1,834,681,547,412,167.50
  5. Step 5: Solve for x
    x = 1,834,681,547,412,167.50/60,579,684.70
  6. Step 6: Final answer
    x = 30,285,425.82

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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.