Home / 209,931,861.60-314,897,792.40-133,593,314.40

Finding the Fourth Proportional to 209,931,861.60, 314,897,792.40 and 133,593,314.40

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Solution

The fourth proportional to 209,931,861.60, 314,897,792.40 and 133,593,314.40 is: 200,389,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,931,861.60 : 314,897,792.40 = 133,593,314.40 : x
  2. Step 2: Convert to fraction form
    209,931,861.60/314,897,792.40 = 133,593,314.40/x
  3. Step 3: Cross multiply
    209,931,861.60x = 314,897,792.40 × 133,593,314.40
  4. Step 4: Simplify right side
    209,931,861.60x = 42,068,239,783,959,128
  5. Step 5: Solve for x
    x = 42,068,239,783,959,128/209,931,861.60
  6. Step 6: Final answer
    x = 200,389,971.60

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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.