Home / 77,064,509.70-106,246,142.88-61,222,159.63

Finding the Fourth Proportional to 77,064,509.70, 106,246,142.88 and 61,222,159.63

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Solution

The fourth proportional to 77,064,509.70, 106,246,142.88 and 61,222,159.63 is: 84,404,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,064,509.70 : 106,246,142.88 = 61,222,159.63 : x
  2. Step 2: Convert to fraction form
    77,064,509.70/106,246,142.88 = 61,222,159.63/x
  3. Step 3: Cross multiply
    77,064,509.70x = 106,246,142.88 × 61,222,159.63
  4. Step 4: Simplify right side
    77,064,509.70x = 6,504,618,319,374,373
  5. Step 5: Solve for x
    x = 6,504,618,319,374,373/77,064,509.70
  6. Step 6: Final answer
    x = 84,404,849.19

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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.