Home / 177,141,920.40-265,712,880.60-81,590,432.40

Finding the Fourth Proportional to 177,141,920.40, 265,712,880.60 and 81,590,432.40

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Solution

The fourth proportional to 177,141,920.40, 265,712,880.60 and 81,590,432.40 is: 122,385,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,141,920.40 : 265,712,880.60 = 81,590,432.40 : x
  2. Step 2: Convert to fraction form
    177,141,920.40/265,712,880.60 = 81,590,432.40/x
  3. Step 3: Cross multiply
    177,141,920.40x = 265,712,880.60 × 81,590,432.40
  4. Step 4: Simplify right side
    177,141,920.40x = 21,679,628,822,403,572
  5. Step 5: Solve for x
    x = 21,679,628,822,403,572/177,141,920.40
  6. Step 6: Final answer
    x = 122,385,648.60

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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.