Home / 457,127,879.79-630,833,006.87-248,285,517.11

Finding the Fourth Proportional to 457,127,879.79, 630,833,006.87 and 248,285,517.11

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Solution

The fourth proportional to 457,127,879.79, 630,833,006.87 and 248,285,517.11 is: 342,632,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,127,879.79 : 630,833,006.87 = 248,285,517.11 : x
  2. Step 2: Convert to fraction form
    457,127,879.79/630,833,006.87 = 248,285,517.11/x
  3. Step 3: Cross multiply
    457,127,879.79x = 630,833,006.87 × 248,285,517.11
  4. Step 4: Simplify right side
    457,127,879.79x = 156,626,699,316,378,528
  5. Step 5: Solve for x
    x = 156,626,699,316,378,528/457,127,879.79
  6. Step 6: Final answer
    x = 342,632,130.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.