Home / 485,326,794.88-728,020,838.67-205,155,466.17

Finding the Fourth Proportional to 485,326,794.88, 728,020,838.67 and 205,155,466.17

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Solution

The fourth proportional to 485,326,794.88, 728,020,838.67 and 205,155,466.17 is: 307,746,153.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,326,794.88 : 728,020,838.67 = 205,155,466.17 : x
  2. Step 2: Convert to fraction form
    485,326,794.88/728,020,838.67 = 205,155,466.17/x
  3. Step 3: Cross multiply
    485,326,794.88x = 728,020,838.67 × 205,155,466.17
  4. Step 4: Simplify right side
    485,326,794.88x = 149,357,454,538,818,208
  5. Step 5: Solve for x
    x = 149,357,454,538,818,208/485,326,794.88
  6. Step 6: Final answer
    x = 307,746,153.96

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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.