Home / 193,506,643.20-290,371,939.20-72,350,342.40

Finding the Fourth Proportional to 193,506,643.20, 290,371,939.20 and 72,350,342.40

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Solution

The fourth proportional to 193,506,643.20, 290,371,939.20 and 72,350,342.40 is: 108,567,379.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,506,643.20 : 290,371,939.20 = 72,350,342.40 : x
  2. Step 2: Convert to fraction form
    193,506,643.20/290,371,939.20 = 72,350,342.40/x
  3. Step 3: Cross multiply
    193,506,643.20x = 290,371,939.20 × 72,350,342.40
  4. Step 4: Simplify right side
    193,506,643.20x = 21,008,509,224,471,984
  5. Step 5: Solve for x
    x = 21,008,509,224,471,984/193,506,643.20
  6. Step 6: Final answer
    x = 108,567,379.79

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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.