Home / 404,349,416.36-606,525,901.44-128,001,988.10

Finding the Fourth Proportional to 404,349,416.36, 606,525,901.44 and 128,001,988.10

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Solution

The fourth proportional to 404,349,416.36, 606,525,901.44 and 128,001,988.10 is: 192,003,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,349,416.36 : 606,525,901.44 = 128,001,988.10 : x
  2. Step 2: Convert to fraction form
    404,349,416.36/606,525,901.44 = 128,001,988.10/x
  3. Step 3: Cross multiply
    404,349,416.36x = 606,525,901.44 × 128,001,988.10
  4. Step 4: Simplify right side
    404,349,416.36x = 77,636,521,218,464,656
  5. Step 5: Solve for x
    x = 77,636,521,218,464,656/404,349,416.36
  6. Step 6: Final answer
    x = 192,003,544.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.