Home / 78,009,547.30-107,601,339.70-50,167,458.01

Finding the Fourth Proportional to 78,009,547.30, 107,601,339.70 and 50,167,458.01

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Solution

The fourth proportional to 78,009,547.30, 107,601,339.70 and 50,167,458.01 is: 69,197,756.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,009,547.30 : 107,601,339.70 = 50,167,458.01 : x
  2. Step 2: Convert to fraction form
    78,009,547.30/107,601,339.70 = 50,167,458.01/x
  3. Step 3: Cross multiply
    78,009,547.30x = 107,601,339.70 × 50,167,458.01
  4. Step 4: Simplify right side
    78,009,547.30x = 5,398,085,691,219,496
  5. Step 5: Solve for x
    x = 5,398,085,691,219,496/78,009,547.30
  6. Step 6: Final answer
    x = 69,197,756.92

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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.