Home / 900,352,928.25-1,242,487,040.99-488,287,136.25

Finding the Fourth Proportional to 900,352,928.25, 1,242,487,040.99 and 488,287,136.25

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Solution

The fourth proportional to 900,352,928.25, 1,242,487,040.99 and 488,287,136.25 is: 673,836,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,352,928.25 : 1,242,487,040.99 = 488,287,136.25 : x
  2. Step 2: Convert to fraction form
    900,352,928.25/1,242,487,040.99 = 488,287,136.25/x
  3. Step 3: Cross multiply
    900,352,928.25x = 1,242,487,040.99 × 488,287,136.25
  4. Step 4: Simplify right side
    900,352,928.25x = 606,690,439,070,301,952
  5. Step 5: Solve for x
    x = 606,690,439,070,301,952/900,352,928.25
  6. Step 6: Final answer
    x = 673,836,248.03

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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.