Home / 86,278,118.88-119,066,742-51,026,142.72

Finding the Fourth Proportional to 86,278,118.88, 119,066,742 and 51,026,142.72

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Solution

The fourth proportional to 86,278,118.88, 119,066,742 and 51,026,142.72 is: 70,417,814.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,278,118.88 : 119,066,742 = 51,026,142.72 : x
  2. Step 2: Convert to fraction form
    86,278,118.88/119,066,742 = 51,026,142.72/x
  3. Step 3: Cross multiply
    86,278,118.88x = 119,066,742 × 51,026,142.72
  4. Step 4: Simplify right side
    86,278,118.88x = 6,075,516,570,497,418
  5. Step 5: Solve for x
    x = 6,075,516,570,497,418/86,278,118.88
  6. Step 6: Final answer
    x = 70,417,814.50

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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.