Home / 780,417,755.76-1,170,159,132.15-248,399,359.70

Finding the Fourth Proportional to 780,417,755.76, 1,170,159,132.15 and 248,399,359.70

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Solution

The fourth proportional to 780,417,755.76, 1,170,159,132.15 and 248,399,359.70 is: 372,450,238.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,417,755.76 : 1,170,159,132.15 = 248,399,359.70 : x
  2. Step 2: Convert to fraction form
    780,417,755.76/1,170,159,132.15 = 248,399,359.70/x
  3. Step 3: Cross multiply
    780,417,755.76x = 1,170,159,132.15 × 248,399,359.70
  4. Step 4: Simplify right side
    780,417,755.76x = 290,666,779,167,316,928
  5. Step 5: Solve for x
    x = 290,666,779,167,316,928/780,417,755.76
  6. Step 6: Final answer
    x = 372,450,238.38

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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.