Home / 78,417,080,237.70-117,625,620,356.55-19,529,165,909.70

Finding the Fourth Proportional to 78,417,080,237.70, 117,625,620,356.55 and 19,529,165,909.70

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Solution

The fourth proportional to 78,417,080,237.70, 117,625,620,356.55 and 19,529,165,909.70 is: 29,293,748,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,417,080,237.70 : 117,625,620,356.55 = 19,529,165,909.70 : x
  2. Step 2: Convert to fraction form
    78,417,080,237.70/117,625,620,356.55 = 19,529,165,909.70/x
  3. Step 3: Cross multiply
    78,417,080,237.70x = 117,625,620,356.55 × 19,529,165,909.70
  4. Step 4: Simplify right side
    78,417,080,237.70x = 2,297,130,255,174,450,806,784
  5. Step 5: Solve for x
    x = 2,297,130,255,174,450,806,784/78,417,080,237.70
  6. Step 6: Final answer
    x = 29,293,748,864.55

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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.