Home / 81,648,194.40-122,472,291.60-61,492,802.40

Finding the Fourth Proportional to 81,648,194.40, 122,472,291.60 and 61,492,802.40

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Solution

The fourth proportional to 81,648,194.40, 122,472,291.60 and 61,492,802.40 is: 92,239,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648,194.40 : 122,472,291.60 = 61,492,802.40 : x
  2. Step 2: Convert to fraction form
    81,648,194.40/122,472,291.60 = 61,492,802.40/x
  3. Step 3: Cross multiply
    81,648,194.40x = 122,472,291.60 × 61,492,802.40
  4. Step 4: Simplify right side
    81,648,194.40x = 7,531,164,426,833,979
  5. Step 5: Solve for x
    x = 7,531,164,426,833,979/81,648,194.40
  6. Step 6: Final answer
    x = 92,239,203.60

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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.