Home / 77,704,574-107,229,495.60-42,896,515.28

Finding the Fourth Proportional to 77,704,574, 107,229,495.60 and 42,896,515.28

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Solution

The fourth proportional to 77,704,574, 107,229,495.60 and 42,896,515.28 is: 59,195,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,704,574 : 107,229,495.60 = 42,896,515.28 : x
  2. Step 2: Convert to fraction form
    77,704,574/107,229,495.60 = 42,896,515.28/x
  3. Step 3: Cross multiply
    77,704,574x = 107,229,495.60 × 42,896,515.28
  4. Step 4: Simplify right side
    77,704,574x = 4,599,771,696,472,093
  5. Step 5: Solve for x
    x = 4,599,771,696,472,093/77,704,574
  6. Step 6: Final answer
    x = 59,195,636.24

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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.