Home / 121,359,802.40-182,039,703.60-80,545,133.60

Finding the Fourth Proportional to 121,359,802.40, 182,039,703.60 and 80,545,133.60

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Solution

The fourth proportional to 121,359,802.40, 182,039,703.60 and 80,545,133.60 is: 120,817,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,359,802.40 : 182,039,703.60 = 80,545,133.60 : x
  2. Step 2: Convert to fraction form
    121,359,802.40/182,039,703.60 = 80,545,133.60/x
  3. Step 3: Cross multiply
    121,359,802.40x = 182,039,703.60 × 80,545,133.60
  4. Step 4: Simplify right side
    121,359,802.40x = 14,662,412,246,966,400
  5. Step 5: Solve for x
    x = 14,662,412,246,966,400/121,359,802.40
  6. Step 6: Final answer
    x = 120,817,700.40

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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.