Home / 900,352,938.38-1,242,487,054.96-488,287,146.38

Finding the Fourth Proportional to 900,352,938.38, 1,242,487,054.96 and 488,287,146.38

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Solution

The fourth proportional to 900,352,938.38, 1,242,487,054.96 and 488,287,146.38 is: 673,836,262.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,352,938.38 : 1,242,487,054.96 = 488,287,146.38 : x
  2. Step 2: Convert to fraction form
    900,352,938.38/1,242,487,054.96 = 488,287,146.38/x
  3. Step 3: Cross multiply
    900,352,938.38x = 1,242,487,054.96 × 488,287,146.38
  4. Step 4: Simplify right side
    900,352,938.38x = 606,690,458,473,075,456
  5. Step 5: Solve for x
    x = 606,690,458,473,075,456/900,352,938.38
  6. Step 6: Final answer
    x = 673,836,262.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.