Home / 145,406,352.95-200,661,417.92-79,326,650.96

Finding the Fourth Proportional to 145,406,352.95, 200,661,417.92 and 79,326,650.96

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Solution

The fourth proportional to 145,406,352.95, 200,661,417.92 and 79,326,650.96 is: 109,471,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,406,352.95 : 200,661,417.92 = 79,326,650.96 : x
  2. Step 2: Convert to fraction form
    145,406,352.95/200,661,417.92 = 79,326,650.96/x
  3. Step 3: Cross multiply
    145,406,352.95x = 200,661,417.92 × 79,326,650.96
  4. Step 4: Simplify right side
    145,406,352.95x = 15,917,798,260,478,526
  5. Step 5: Solve for x
    x = 15,917,798,260,478,526/145,406,352.95
  6. Step 6: Final answer
    x = 109,471,133.40

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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.