Home / 134,600,491.68-185,748,810-72,720,879.48

Finding the Fourth Proportional to 134,600,491.68, 185,748,810 and 72,720,879.48

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Solution

The fourth proportional to 134,600,491.68, 185,748,810 and 72,720,879.48 is: 100,354,884.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,600,491.68 : 185,748,810 = 72,720,879.48 : x
  2. Step 2: Convert to fraction form
    134,600,491.68/185,748,810 = 72,720,879.48/x
  3. Step 3: Cross multiply
    134,600,491.68x = 185,748,810 × 72,720,879.48
  4. Step 4: Simplify right side
    134,600,491.68x = 13,507,816,825,563,420
  5. Step 5: Solve for x
    x = 13,507,816,825,563,420/134,600,491.68
  6. Step 6: Final answer
    x = 100,354,884.72

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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.