Home / 21,302,320,259.90-31,953,480,389.85-8,889,559,111.10

Finding the Fourth Proportional to 21,302,320,259.90, 31,953,480,389.85 and 8,889,559,111.10

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Solution

The fourth proportional to 21,302,320,259.90, 31,953,480,389.85 and 8,889,559,111.10 is: 13,334,338,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302,320,259.90 : 31,953,480,389.85 = 8,889,559,111.10 : x
  2. Step 2: Convert to fraction form
    21,302,320,259.90/31,953,480,389.85 = 8,889,559,111.10/x
  3. Step 3: Cross multiply
    21,302,320,259.90x = 31,953,480,389.85 × 8,889,559,111.10
  4. Step 4: Simplify right side
    21,302,320,259.90x = 284,052,352,730,946,240,512
  5. Step 5: Solve for x
    x = 284,052,352,730,946,240,512/21,302,320,259.90
  6. Step 6: Final answer
    x = 13,334,338,666.65

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Double scale
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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.