Home / 290,899,155.12-401,449,352.12-158,748,666.96

Finding the Fourth Proportional to 290,899,155.12, 401,449,352.12 and 158,748,666.96

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Solution

The fourth proportional to 290,899,155.12, 401,449,352.12 and 158,748,666.96 is: 219,077,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,899,155.12 : 401,449,352.12 = 158,748,666.96 : x
  2. Step 2: Convert to fraction form
    290,899,155.12/401,449,352.12 = 158,748,666.96/x
  3. Step 3: Cross multiply
    290,899,155.12x = 401,449,352.12 × 158,748,666.96
  4. Step 4: Simplify right side
    290,899,155.12x = 63,729,549,501,005,656
  5. Step 5: Solve for x
    x = 63,729,549,501,005,656/290,899,155.12
  6. Step 6: Final answer
    x = 219,077,808.85

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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.