Home / 208,281,667.64-287,431,320.30-120,193,944.08

Finding the Fourth Proportional to 208,281,667.64, 287,431,320.30 and 120,193,944.08

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Solution

The fourth proportional to 208,281,667.64, 287,431,320.30 and 120,193,944.08 is: 165,869,154.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,281,667.64 : 287,431,320.30 = 120,193,944.08 : x
  2. Step 2: Convert to fraction form
    208,281,667.64/287,431,320.30 = 120,193,944.08/x
  3. Step 3: Cross multiply
    208,281,667.64x = 287,431,320.30 × 120,193,944.08
  4. Step 4: Simplify right side
    208,281,667.64x = 34,547,504,038,978,768
  5. Step 5: Solve for x
    x = 34,547,504,038,978,768/208,281,667.64
  6. Step 6: Final answer
    x = 165,869,154.16

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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.