Home / 71,296,407.90-98,386,208.55-40,362,993.90

Finding the Fourth Proportional to 71,296,407.90, 98,386,208.55 and 40,362,993.90

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Solution

The fourth proportional to 71,296,407.90, 98,386,208.55 and 40,362,993.90 is: 55,699,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,296,407.90 : 98,386,208.55 = 40,362,993.90 : x
  2. Step 2: Convert to fraction form
    71,296,407.90/98,386,208.55 = 40,362,993.90/x
  3. Step 3: Cross multiply
    71,296,407.90x = 98,386,208.55 × 40,362,993.90
  4. Step 4: Simplify right side
    71,296,407.90x = 3,971,161,935,547,777.50
  5. Step 5: Solve for x
    x = 3,971,161,935,547,777.50/71,296,407.90
  6. Step 6: Final answer
    x = 55,699,326.97

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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.