Home / 78,417,076,807.20-117,625,615,210.80-19,529,162,479.20

Finding the Fourth Proportional to 78,417,076,807.20, 117,625,615,210.80 and 19,529,162,479.20

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Solution

The fourth proportional to 78,417,076,807.20, 117,625,615,210.80 and 19,529,162,479.20 is: 29,293,743,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,417,076,807.20 : 117,625,615,210.80 = 19,529,162,479.20 : x
  2. Step 2: Convert to fraction form
    78,417,076,807.20/117,625,615,210.80 = 19,529,162,479.20/x
  3. Step 3: Cross multiply
    78,417,076,807.20x = 117,625,615,210.80 × 19,529,162,479.20
  4. Step 4: Simplify right side
    78,417,076,807.20x = 2,297,129,751,167,572,377,600
  5. Step 5: Solve for x
    x = 2,297,129,751,167,572,377,600/78,417,076,807.20
  6. Step 6: Final answer
    x = 29,293,743,718.80

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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.