Home / 78,754,657,615.36-118,144,290,067.36-25,683,347,390.72

Finding the Fourth Proportional to 78,754,657,615.36, 118,144,290,067.36 and 25,683,347,390.72

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Solution

The fourth proportional to 78,754,657,615.36, 118,144,290,067.36 and 25,683,347,390.72 is: 38,529,033,531.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,754,657,615.36 : 118,144,290,067.36 = 25,683,347,390.72 : x
  2. Step 2: Convert to fraction form
    78,754,657,615.36/118,144,290,067.36 = 25,683,347,390.72/x
  3. Step 3: Cross multiply
    78,754,657,615.36x = 118,144,290,067.36 × 25,683,347,390.72
  4. Step 4: Simplify right side
    78,754,657,615.36x = 3,034,340,844,029,997,481,984
  5. Step 5: Solve for x
    x = 3,034,340,844,029,997,481,984/78,754,657,615.36
  6. Step 6: Final answer
    x = 38,529,033,531.58

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1.5x scale

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.