Home / 56,313,619.28-77,712,795.24-30,559,507.28

Finding the Fourth Proportional to 56,313,619.28, 77,712,795.24 and 30,559,507.28

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Solution

The fourth proportional to 56,313,619.28, 77,712,795.24 and 30,559,507.28 is: 42,172,120.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,313,619.28 : 77,712,795.24 = 30,559,507.28 : x
  2. Step 2: Convert to fraction form
    56,313,619.28/77,712,795.24 = 30,559,507.28/x
  3. Step 3: Cross multiply
    56,313,619.28x = 77,712,795.24 × 30,559,507.28
  4. Step 4: Simplify right side
    56,313,619.28x = 2,374,864,731,885,929.50
  5. Step 5: Solve for x
    x = 2,374,864,731,885,929.50/56,313,619.28
  6. Step 6: Final answer
    x = 42,172,120.39

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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.