Home / 145,644,605.80-218,466,908.70-131,031,946.60

Finding the Fourth Proportional to 145,644,605.80, 218,466,908.70 and 131,031,946.60

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Solution

The fourth proportional to 145,644,605.80, 218,466,908.70 and 131,031,946.60 is: 196,547,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,644,605.80 : 218,466,908.70 = 131,031,946.60 : x
  2. Step 2: Convert to fraction form
    145,644,605.80/218,466,908.70 = 131,031,946.60/x
  3. Step 3: Cross multiply
    145,644,605.80x = 218,466,908.70 × 131,031,946.60
  4. Step 4: Simplify right side
    145,644,605.80x = 28,626,144,314,645,472
  5. Step 5: Solve for x
    x = 28,626,144,314,645,472/145,644,605.80
  6. Step 6: Final answer
    x = 196,547,919.90

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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.