Home / 152,989,980.40-211,120,013.64-83,373,866.56

Finding the Fourth Proportional to 152,989,980.40, 211,120,013.64 and 83,373,866.56

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Solution

The fourth proportional to 152,989,980.40, 211,120,013.64 and 83,373,866.56 is: 115,052,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,989,980.40 : 211,120,013.64 = 83,373,866.56 : x
  2. Step 2: Convert to fraction form
    152,989,980.40/211,120,013.64 = 83,373,866.56/x
  3. Step 3: Cross multiply
    152,989,980.40x = 211,120,013.64 × 83,373,866.56
  4. Step 4: Simplify right side
    152,989,980.40x = 17,601,891,845,366,740
  5. Step 5: Solve for x
    x = 17,601,891,845,366,740/152,989,980.40
  6. Step 6: Final answer
    x = 115,052,579.26

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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.