Home / 18,880,128,001.20-28,320,192,001.80-9,084,607,489.20

Finding the Fourth Proportional to 18,880,128,001.20, 28,320,192,001.80 and 9,084,607,489.20

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Solution

The fourth proportional to 18,880,128,001.20, 28,320,192,001.80 and 9,084,607,489.20 is: 13,626,911,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880,128,001.20 : 28,320,192,001.80 = 9,084,607,489.20 : x
  2. Step 2: Convert to fraction form
    18,880,128,001.20/28,320,192,001.80 = 9,084,607,489.20/x
  3. Step 3: Cross multiply
    18,880,128,001.20x = 28,320,192,001.80 × 9,084,607,489.20
  4. Step 4: Simplify right side
    18,880,128,001.20x = 257,277,828,355,134,226,432
  5. Step 5: Solve for x
    x = 257,277,828,355,134,226,432/18,880,128,001.20
  6. Step 6: Final answer
    x = 13,626,911,233.80

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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.