Home / 20,902,464,085.60-31,353,696,128.40-19,306,157,039.20

Finding the Fourth Proportional to 20,902,464,085.60, 31,353,696,128.40 and 19,306,157,039.20

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Solution

The fourth proportional to 20,902,464,085.60, 31,353,696,128.40 and 19,306,157,039.20 is: 28,959,235,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902,464,085.60 : 31,353,696,128.40 = 19,306,157,039.20 : x
  2. Step 2: Convert to fraction form
    20,902,464,085.60/31,353,696,128.40 = 19,306,157,039.20/x
  3. Step 3: Cross multiply
    20,902,464,085.60x = 31,353,696,128.40 × 19,306,157,039.20
  4. Step 4: Simplify right side
    20,902,464,085.60x = 605,319,381,214,247,518,208
  5. Step 5: Solve for x
    x = 605,319,381,214,247,518,208/20,902,464,085.60
  6. Step 6: Final answer
    x = 28,959,235,558.80

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1.5x scale

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.