Home / 545,845,561.20-819,136,746.76-213,811,386.12

Finding the Fourth Proportional to 545,845,561.20, 819,136,746.76 and 213,811,386.12

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Solution

The fourth proportional to 545,845,561.20, 819,136,746.76 and 213,811,386.12 is: 320,861,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,845,561.20 : 819,136,746.76 = 213,811,386.12 : x
  2. Step 2: Convert to fraction form
    545,845,561.20/819,136,746.76 = 213,811,386.12/x
  3. Step 3: Cross multiply
    545,845,561.20x = 819,136,746.76 × 213,811,386.12
  4. Step 4: Simplify right side
    545,845,561.20x = 175,140,763,246,583,008
  5. Step 5: Solve for x
    x = 175,140,763,246,583,008/545,845,561.20
  6. Step 6: Final answer
    x = 320,861,385.89

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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.