Home / 153,687,989.36-212,088,791.18-83,123,678.36

Finding the Fourth Proportional to 153,687,989.36, 212,088,791.18 and 83,123,678.36

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Solution

The fourth proportional to 153,687,989.36, 212,088,791.18 and 83,123,678.36 is: 114,710,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,687,989.36 : 212,088,791.18 = 83,123,678.36 : x
  2. Step 2: Convert to fraction form
    153,687,989.36/212,088,791.18 = 83,123,678.36/x
  3. Step 3: Cross multiply
    153,687,989.36x = 212,088,791.18 × 83,123,678.36
  4. Step 4: Simplify right side
    153,687,989.36x = 17,629,600,461,807,526
  5. Step 5: Solve for x
    x = 17,629,600,461,807,526/153,687,989.36
  6. Step 6: Final answer
    x = 114,710,333.16

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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.