Home / 145,042,663.20-217,501,009.20-47,960,858.40

Finding the Fourth Proportional to 145,042,663.20, 217,501,009.20 and 47,960,858.40

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Solution

The fourth proportional to 145,042,663.20, 217,501,009.20 and 47,960,858.40 is: 71,920,460.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,042,663.20 : 217,501,009.20 = 47,960,858.40 : x
  2. Step 2: Convert to fraction form
    145,042,663.20/217,501,009.20 = 47,960,858.40/x
  3. Step 3: Cross multiply
    145,042,663.20x = 217,501,009.20 × 47,960,858.40
  4. Step 4: Simplify right side
    145,042,663.20x = 10,431,535,104,098,296
  5. Step 5: Solve for x
    x = 10,431,535,104,098,296/145,042,663.20
  6. Step 6: Final answer
    x = 71,920,460.32

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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.