Home / 153,838,400.69-212,297,614.94-84,230,258.51

Finding the Fourth Proportional to 153,838,400.69, 212,297,614.94 and 84,230,258.51

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Solution

The fourth proportional to 153,838,400.69, 212,297,614.94 and 84,230,258.51 is: 116,238,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,838,400.69 : 212,297,614.94 = 84,230,258.51 : x
  2. Step 2: Convert to fraction form
    153,838,400.69/212,297,614.94 = 84,230,258.51/x
  3. Step 3: Cross multiply
    153,838,400.69x = 212,297,614.94 × 84,230,258.51
  4. Step 4: Simplify right side
    153,838,400.69x = 17,881,882,987,452,640
  5. Step 5: Solve for x
    x = 17,881,882,987,452,640/153,838,400.69
  6. Step 6: Final answer
    x = 116,238,097.30

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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.