Home / 77,654,685.71-107,165,709.29-42,849,617.51

Finding the Fourth Proportional to 77,654,685.71, 107,165,709.29 and 42,849,617.51

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Solution

The fourth proportional to 77,654,685.71, 107,165,709.29 and 42,849,617.51 is: 59,133,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,654,685.71 : 107,165,709.29 = 42,849,617.51 : x
  2. Step 2: Convert to fraction form
    77,654,685.71/107,165,709.29 = 42,849,617.51/x
  3. Step 3: Cross multiply
    77,654,685.71x = 107,165,709.29 × 42,849,617.51
  4. Step 4: Simplify right side
    77,654,685.71x = 4,592,009,652,835,650
  5. Step 5: Solve for x
    x = 4,592,009,652,835,650/77,654,685.71
  6. Step 6: Final answer
    x = 59,133,709.85

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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.