Home / 145,042,904.20-217,501,370.70-47,961,099.40

Finding the Fourth Proportional to 145,042,904.20, 217,501,370.70 and 47,961,099.40

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Solution

The fourth proportional to 145,042,904.20, 217,501,370.70 and 47,961,099.40 is: 71,920,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,042,904.20 : 217,501,370.70 = 47,961,099.40 : x
  2. Step 2: Convert to fraction form
    145,042,904.20/217,501,370.70 = 47,961,099.40/x
  3. Step 3: Cross multiply
    145,042,904.20x = 217,501,370.70 × 47,961,099.40
  4. Step 4: Simplify right side
    145,042,904.20x = 10,431,604,859,778,946
  5. Step 5: Solve for x
    x = 10,431,604,859,778,946/145,042,904.20
  6. Step 6: Final answer
    x = 71,920,821.75

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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.