Home / 153,666,687.57-212,057,536.83-84,051,459.51

Finding the Fourth Proportional to 153,666,687.57, 212,057,536.83 and 84,051,459.51

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Solution

The fourth proportional to 153,666,687.57, 212,057,536.83 and 84,051,459.51 is: 115,989,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,666,687.57 : 212,057,536.83 = 84,051,459.51 : x
  2. Step 2: Convert to fraction form
    153,666,687.57/212,057,536.83 = 84,051,459.51/x
  3. Step 3: Cross multiply
    153,666,687.57x = 212,057,536.83 × 84,051,459.51
  4. Step 4: Simplify right side
    153,666,687.57x = 17,823,745,470,657,080
  5. Step 5: Solve for x
    x = 17,823,745,470,657,080/153,666,687.57
  6. Step 6: Final answer
    x = 115,989,651.06

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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.