Home / 15,615,272,816.96-21,549,076,487.40-8,932,269,381.71

Finding the Fourth Proportional to 15,615,272,816.96, 21,549,076,487.40 and 8,932,269,381.71

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Solution

The fourth proportional to 15,615,272,816.96, 21,549,076,487.40 and 8,932,269,381.71 is: 12,326,531,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615,272,816.96 : 21,549,076,487.40 = 8,932,269,381.71 : x
  2. Step 2: Convert to fraction form
    15,615,272,816.96/21,549,076,487.40 = 8,932,269,381.71/x
  3. Step 3: Cross multiply
    15,615,272,816.96x = 21,549,076,487.40 × 8,932,269,381.71
  4. Step 4: Simplify right side
    15,615,272,816.96x = 192,482,156,112,422,174,720
  5. Step 5: Solve for x
    x = 192,482,156,112,422,174,720/15,615,272,816.96
  6. Step 6: Final answer
    x = 12,326,531,746.75

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.