Home / 885,775,234.80-1,328,662,852.20-821,277,980.40

Finding the Fourth Proportional to 885,775,234.80, 1,328,662,852.20 and 821,277,980.40

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Solution

The fourth proportional to 885,775,234.80, 1,328,662,852.20 and 821,277,980.40 is: 1,231,916,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,775,234.80 : 1,328,662,852.20 = 821,277,980.40 : x
  2. Step 2: Convert to fraction form
    885,775,234.80/1,328,662,852.20 = 821,277,980.40/x
  3. Step 3: Cross multiply
    885,775,234.80x = 1,328,662,852.20 × 821,277,980.40
  4. Step 4: Simplify right side
    885,775,234.80x = 1,091,201,543,887,319,680
  5. Step 5: Solve for x
    x = 1,091,201,543,887,319,680/885,775,234.80
  6. Step 6: Final answer
    x = 1,231,916,970.60

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1.5x scale

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.