Home / 103,601,411.12-142,966,200.48-57,190,668.68

Finding the Fourth Proportional to 103,601,411.12, 142,966,200.48 and 57,190,668.68

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Solution

The fourth proportional to 103,601,411.12, 142,966,200.48 and 57,190,668.68 is: 78,921,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,601,411.12 : 142,966,200.48 = 57,190,668.68 : x
  2. Step 2: Convert to fraction form
    103,601,411.12/142,966,200.48 = 57,190,668.68/x
  3. Step 3: Cross multiply
    103,601,411.12x = 142,966,200.48 × 57,190,668.68
  4. Step 4: Simplify right side
    103,601,411.12x = 8,176,332,604,090,136
  5. Step 5: Solve for x
    x = 8,176,332,604,090,136/103,601,411.12
  6. Step 6: Final answer
    x = 78,921,054.41

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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.