Home / 78,447,746.74-117,635,257.80-29,250,390.47

Finding the Fourth Proportional to 78,447,746.74, 117,635,257.80 and 29,250,390.47

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Solution

The fourth proportional to 78,447,746.74, 117,635,257.80 and 29,250,390.47 is: 43,862,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,447,746.74 : 117,635,257.80 = 29,250,390.47 : x
  2. Step 2: Convert to fraction form
    78,447,746.74/117,635,257.80 = 29,250,390.47/x
  3. Step 3: Cross multiply
    78,447,746.74x = 117,635,257.80 × 29,250,390.47
  4. Step 4: Simplify right side
    78,447,746.74x = 3,440,877,223,473,393.50
  5. Step 5: Solve for x
    x = 3,440,877,223,473,393.50/78,447,746.74
  6. Step 6: Final answer
    x = 43,862,027.48

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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.