Home / 21,302,320,130.40-31,953,480,195.60-8,889,558,981.60

Finding the Fourth Proportional to 21,302,320,130.40, 31,953,480,195.60 and 8,889,558,981.60

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Solution

The fourth proportional to 21,302,320,130.40, 31,953,480,195.60 and 8,889,558,981.60 is: 13,334,338,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302,320,130.40 : 31,953,480,195.60 = 8,889,558,981.60 : x
  2. Step 2: Convert to fraction form
    21,302,320,130.40/31,953,480,195.60 = 8,889,558,981.60/x
  3. Step 3: Cross multiply
    21,302,320,130.40x = 31,953,480,195.60 × 8,889,558,981.60
  4. Step 4: Simplify right side
    21,302,320,130.40x = 284,052,346,866,173,706,240
  5. Step 5: Solve for x
    x = 284,052,346,866,173,706,240/21,302,320,130.40
  6. Step 6: Final answer
    x = 13,334,338,472.40

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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.