Home / 77,711,885.09-107,240,266.91-42,903,943.01

Finding the Fourth Proportional to 77,711,885.09, 107,240,266.91 and 42,903,943.01

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Solution

The fourth proportional to 77,711,885.09, 107,240,266.91 and 42,903,943.01 is: 59,206,262.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,711,885.09 : 107,240,266.91 = 42,903,943.01 : x
  2. Step 2: Convert to fraction form
    77,711,885.09/107,240,266.91 = 42,903,943.01/x
  3. Step 3: Cross multiply
    77,711,885.09x = 107,240,266.91 × 42,903,943.01
  4. Step 4: Simplify right side
    77,711,885.09x = 4,601,030,299,883,828
  5. Step 5: Solve for x
    x = 4,601,030,299,883,828/77,711,885.09
  6. Step 6: Final answer
    x = 59,206,262.91

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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.