Home / 70,877,579.40-106,103,792.70-42,108,906.60

Finding the Fourth Proportional to 70,877,579.40, 106,103,792.70 and 42,108,906.60

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Solution

The fourth proportional to 70,877,579.40, 106,103,792.70 and 42,108,906.60 is: 63,037,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,877,579.40 : 106,103,792.70 = 42,108,906.60 : x
  2. Step 2: Convert to fraction form
    70,877,579.40/106,103,792.70 = 42,108,906.60/x
  3. Step 3: Cross multiply
    70,877,579.40x = 106,103,792.70 × 42,108,906.60
  4. Step 4: Simplify right side
    70,877,579.40x = 4,467,914,696,710,062
  5. Step 5: Solve for x
    x = 4,467,914,696,710,062/70,877,579.40
  6. Step 6: Final answer
    x = 63,037,066.65

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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.