Home / 56,313,621.78-77,712,798.69-30,559,509.78

Finding the Fourth Proportional to 56,313,621.78, 77,712,798.69 and 30,559,509.78

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Solution

The fourth proportional to 56,313,621.78, 77,712,798.69 and 30,559,509.78 is: 42,172,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,313,621.78 : 77,712,798.69 = 30,559,509.78 : x
  2. Step 2: Convert to fraction form
    56,313,621.78/77,712,798.69 = 30,559,509.78/x
  3. Step 3: Cross multiply
    56,313,621.78x = 77,712,798.69 × 30,559,509.78
  4. Step 4: Simplify right side
    56,313,621.78x = 2,374,865,031,598,226
  5. Step 5: Solve for x
    x = 2,374,865,031,598,226/56,313,621.78
  6. Step 6: Final answer
    x = 42,172,123.84

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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.