Home / 280,060,971.12-420,157,442.52-95,830,453.08

Finding the Fourth Proportional to 280,060,971.12, 420,157,442.52 and 95,830,453.08

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Solution

The fourth proportional to 280,060,971.12, 420,157,442.52 and 95,830,453.08 is: 143,768,258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,060,971.12 : 420,157,442.52 = 95,830,453.08 : x
  2. Step 2: Convert to fraction form
    280,060,971.12/420,157,442.52 = 95,830,453.08/x
  3. Step 3: Cross multiply
    280,060,971.12x = 420,157,442.52 × 95,830,453.08
  4. Step 4: Simplify right side
    280,060,971.12x = 40,263,878,081,625,656
  5. Step 5: Solve for x
    x = 40,263,878,081,625,656/280,060,971.12
  6. Step 6: Final answer
    x = 143,768,258.46

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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.