Home / 121,143,643.60-181,715,465.40-109,050,408.40

Finding the Fourth Proportional to 121,143,643.60, 181,715,465.40 and 109,050,408.40

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Solution

The fourth proportional to 121,143,643.60, 181,715,465.40 and 109,050,408.40 is: 163,575,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,143,643.60 : 181,715,465.40 = 109,050,408.40 : x
  2. Step 2: Convert to fraction form
    121,143,643.60/181,715,465.40 = 109,050,408.40/x
  3. Step 3: Cross multiply
    121,143,643.60x = 181,715,465.40 × 109,050,408.40
  4. Step 4: Simplify right side
    121,143,643.60x = 19,816,145,714,466,072
  5. Step 5: Solve for x
    x = 19,816,145,714,466,072/121,143,643.60
  6. Step 6: Final answer
    x = 163,575,612.60

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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.