Home / 885,736,000.20-1,328,604,000.30-272,240,509.80

Finding the Fourth Proportional to 885,736,000.20, 1,328,604,000.30 and 272,240,509.80

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Solution

The fourth proportional to 885,736,000.20, 1,328,604,000.30 and 272,240,509.80 is: 408,360,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,000.20 : 1,328,604,000.30 = 272,240,509.80 : x
  2. Step 2: Convert to fraction form
    885,736,000.20/1,328,604,000.30 = 272,240,509.80/x
  3. Step 3: Cross multiply
    885,736,000.20x = 1,328,604,000.30 × 272,240,509.80
  4. Step 4: Simplify right side
    885,736,000.20x = 361,699,830,363,991,360
  5. Step 5: Solve for x
    x = 361,699,830,363,991,360/885,736,000.20
  6. Step 6: Final answer
    x = 408,360,764.70

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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.