Home / 103,620,971.60-155,431,457.40-31,808,056.40

Finding the Fourth Proportional to 103,620,971.60, 155,431,457.40 and 31,808,056.40

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Solution

The fourth proportional to 103,620,971.60, 155,431,457.40 and 31,808,056.40 is: 47,712,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620,971.60 : 155,431,457.40 = 31,808,056.40 : x
  2. Step 2: Convert to fraction form
    103,620,971.60/155,431,457.40 = 31,808,056.40/x
  3. Step 3: Cross multiply
    103,620,971.60x = 155,431,457.40 × 31,808,056.40
  4. Step 4: Simplify right side
    103,620,971.60x = 4,943,972,563,313,397
  5. Step 5: Solve for x
    x = 4,943,972,563,313,397/103,620,971.60
  6. Step 6: Final answer
    x = 47,712,084.60

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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.