Home / 56,891,980.50-78,511,139.76-30,786,495.48

Finding the Fourth Proportional to 56,891,980.50, 78,511,139.76 and 30,786,495.48

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Solution

The fourth proportional to 56,891,980.50, 78,511,139.76 and 30,786,495.48 is: 42,485,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891,980.50 : 78,511,139.76 = 30,786,495.48 : x
  2. Step 2: Convert to fraction form
    56,891,980.50/78,511,139.76 = 30,786,495.48/x
  3. Step 3: Cross multiply
    56,891,980.50x = 78,511,139.76 × 30,786,495.48
  4. Step 4: Simplify right side
    56,891,980.50x = 2,417,082,849,350,888.50
  5. Step 5: Solve for x
    x = 2,417,082,849,350,888.50/56,891,980.50
  6. Step 6: Final answer
    x = 42,485,475.60

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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.