Home / 76,604,428.80-105,705,381.86-43,107,437.88

Finding the Fourth Proportional to 76,604,428.80, 105,705,381.86 and 43,107,437.88

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Solution

The fourth proportional to 76,604,428.80, 105,705,381.86 and 43,107,437.88 is: 59,483,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,604,428.80 : 105,705,381.86 = 43,107,437.88 : x
  2. Step 2: Convert to fraction form
    76,604,428.80/105,705,381.86 = 43,107,437.88/x
  3. Step 3: Cross multiply
    76,604,428.80x = 105,705,381.86 × 43,107,437.88
  4. Step 4: Simplify right side
    76,604,428.80x = 4,556,688,182,111,629
  5. Step 5: Solve for x
    x = 4,556,688,182,111,629/76,604,428.80
  6. Step 6: Final answer
    x = 59,483,351.73

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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.