Home / 388,633,456.08-583,052,430.96-139,663,865.52

Finding the Fourth Proportional to 388,633,456.08, 583,052,430.96 and 139,663,865.52

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Solution

The fourth proportional to 388,633,456.08, 583,052,430.96 and 139,663,865.52 is: 209,532,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,633,456.08 : 583,052,430.96 = 139,663,865.52 : x
  2. Step 2: Convert to fraction form
    388,633,456.08/583,052,430.96 = 139,663,865.52/x
  3. Step 3: Cross multiply
    388,633,456.08x = 583,052,430.96 × 139,663,865.52
  4. Step 4: Simplify right side
    388,633,456.08x = 81,431,356,308,706,544
  5. Step 5: Solve for x
    x = 81,431,356,308,706,544/388,633,456.08
  6. Step 6: Final answer
    x = 209,532,542.90

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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.