Home / 118,703,403.86-163,819,784.97-74,688,131.64

Finding the Fourth Proportional to 118,703,403.86, 163,819,784.97 and 74,688,131.64

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Solution

The fourth proportional to 118,703,403.86, 163,819,784.97 and 74,688,131.64 is: 103,075,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,703,403.86 : 163,819,784.97 = 74,688,131.64 : x
  2. Step 2: Convert to fraction form
    118,703,403.86/163,819,784.97 = 74,688,131.64/x
  3. Step 3: Cross multiply
    118,703,403.86x = 163,819,784.97 × 74,688,131.64
  4. Step 4: Simplify right side
    118,703,403.86x = 12,235,393,665,229,844
  5. Step 5: Solve for x
    x = 12,235,393,665,229,844/118,703,403.86
  6. Step 6: Final answer
    x = 103,075,339.60

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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.