Home / 21,784,306,581.24-30,063,460,172.94-13,323,472,939.32

Finding the Fourth Proportional to 21,784,306,581.24, 30,063,460,172.94 and 13,323,472,939.32

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Solution

The fourth proportional to 21,784,306,581.24, 30,063,460,172.94 and 13,323,472,939.32 is: 18,387,075,878.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,784,306,581.24 : 30,063,460,172.94 = 13,323,472,939.32 : x
  2. Step 2: Convert to fraction form
    21,784,306,581.24/30,063,460,172.94 = 13,323,472,939.32/x
  3. Step 3: Cross multiply
    21,784,306,581.24x = 30,063,460,172.94 × 13,323,472,939.32
  4. Step 4: Simplify right side
    21,784,306,581.24x = 400,549,698,076,490,661,888
  5. Step 5: Solve for x
    x = 400,549,698,076,490,661,888/21,784,306,581.24
  6. Step 6: Final answer
    x = 18,387,075,878.81

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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.