Home / 144,168,307.68-216,187,802.16-85,903,442

Finding the Fourth Proportional to 144,168,307.68, 216,187,802.16 and 85,903,442

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Solution

The fourth proportional to 144,168,307.68, 216,187,802.16 and 85,903,442 is: 128,816,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,168,307.68 : 216,187,802.16 = 85,903,442 : x
  2. Step 2: Convert to fraction form
    144,168,307.68/216,187,802.16 = 85,903,442/x
  3. Step 3: Cross multiply
    144,168,307.68x = 216,187,802.16 × 85,903,442
  4. Step 4: Simplify right side
    144,168,307.68x = 18,571,276,323,959,036
  5. Step 5: Solve for x
    x = 18,571,276,323,959,036/144,168,307.68
  6. Step 6: Final answer
    x = 128,816,635.38

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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.