Home / 153,838,399.69-212,297,613.56-84,230,257.51

Finding the Fourth Proportional to 153,838,399.69, 212,297,613.56 and 84,230,257.51

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Solution

The fourth proportional to 153,838,399.69, 212,297,613.56 and 84,230,257.51 is: 116,238,095.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,838,399.69 : 212,297,613.56 = 84,230,257.51 : x
  2. Step 2: Convert to fraction form
    153,838,399.69/212,297,613.56 = 84,230,257.51/x
  3. Step 3: Cross multiply
    153,838,399.69x = 212,297,613.56 × 84,230,257.51
  4. Step 4: Simplify right side
    153,838,399.69x = 17,881,882,658,917,270
  5. Step 5: Solve for x
    x = 17,881,882,658,917,270/153,838,399.69
  6. Step 6: Final answer
    x = 116,238,095.92

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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.