Home / 885,816,077.70-1,328,724,116.55-272,320,587.30

Finding the Fourth Proportional to 885,816,077.70, 1,328,724,116.55 and 272,320,587.30

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Solution

The fourth proportional to 885,816,077.70, 1,328,724,116.55 and 272,320,587.30 is: 408,480,880.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,816,077.70 : 1,328,724,116.55 = 272,320,587.30 : x
  2. Step 2: Convert to fraction form
    885,816,077.70/1,328,724,116.55 = 272,320,587.30/x
  3. Step 3: Cross multiply
    885,816,077.70x = 1,328,724,116.55 × 272,320,587.30
  4. Step 4: Simplify right side
    885,816,077.70x = 361,838,931,778,569,664
  5. Step 5: Solve for x
    x = 361,838,931,778,569,664/885,816,077.70
  6. Step 6: Final answer
    x = 408,480,880.95

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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.