Home / 77,931,009.99-107,545,750.38-43,126,938.90

Finding the Fourth Proportional to 77,931,009.99, 107,545,750.38 and 43,126,938.90

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Solution

The fourth proportional to 77,931,009.99, 107,545,750.38 and 43,126,938.90 is: 59,515,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,931,009.99 : 107,545,750.38 = 43,126,938.90 : x
  2. Step 2: Convert to fraction form
    77,931,009.99/107,545,750.38 = 43,126,938.90/x
  3. Step 3: Cross multiply
    77,931,009.99x = 107,545,750.38 × 43,126,938.90
  4. Step 4: Simplify right side
    77,931,009.99x = 4,638,119,005,592,911
  5. Step 5: Solve for x
    x = 4,638,119,005,592,911/77,931,009.99
  6. Step 6: Final answer
    x = 59,515,705.06

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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.