Home / 885,744,005.80-1,328,616,008.70-425,571,212.20

Finding the Fourth Proportional to 885,744,005.80, 1,328,616,008.70 and 425,571,212.20

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Solution

The fourth proportional to 885,744,005.80, 1,328,616,008.70 and 425,571,212.20 is: 638,356,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,744,005.80 : 1,328,616,008.70 = 425,571,212.20 : x
  2. Step 2: Convert to fraction form
    885,744,005.80/1,328,616,008.70 = 425,571,212.20/x
  3. Step 3: Cross multiply
    885,744,005.80x = 1,328,616,008.70 × 425,571,212.20
  4. Step 4: Simplify right side
    885,744,005.80x = 565,420,725,370,784,768
  5. Step 5: Solve for x
    x = 565,420,725,370,784,768/885,744,005.80
  6. Step 6: Final answer
    x = 638,356,818.30

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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.