Home / 78,482,048.24-117,643,935.36-49,356,701.66

Finding the Fourth Proportional to 78,482,048.24, 117,643,935.36 and 49,356,701.66

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Solution

The fourth proportional to 78,482,048.24, 117,643,935.36 and 49,356,701.66 is: 73,985,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,482,048.24 : 117,643,935.36 = 49,356,701.66 : x
  2. Step 2: Convert to fraction form
    78,482,048.24/117,643,935.36 = 49,356,701.66/x
  3. Step 3: Cross multiply
    78,482,048.24x = 117,643,935.36 × 49,356,701.66
  4. Step 4: Simplify right side
    78,482,048.24x = 5,806,516,619,671,844
  5. Step 5: Solve for x
    x = 5,806,516,619,671,844/78,482,048.24
  6. Step 6: Final answer
    x = 73,985,283.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.