Home / 78,490,307.81-108,316,625.06-43,691,219

Finding the Fourth Proportional to 78,490,307.81, 108,316,625.06 and 43,691,219

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Solution

The fourth proportional to 78,490,307.81, 108,316,625.06 and 43,691,219 is: 60,293,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,490,307.81 : 108,316,625.06 = 43,691,219 : x
  2. Step 2: Convert to fraction form
    78,490,307.81/108,316,625.06 = 43,691,219/x
  3. Step 3: Cross multiply
    78,490,307.81x = 108,316,625.06 × 43,691,219
  4. Step 4: Simplify right side
    78,490,307.81x = 4,732,485,386,837,348
  5. Step 5: Solve for x
    x = 4,732,485,386,837,348/78,490,307.81
  6. Step 6: Final answer
    x = 60,293,882.38

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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.