Home / 152,208,866.10-209,993,332.37-86,128,661.10

Finding the Fourth Proportional to 152,208,866.10, 209,993,332.37 and 86,128,661.10

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Solution

The fourth proportional to 152,208,866.10, 209,993,332.37 and 86,128,661.10 is: 118,826,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,208,866.10 : 209,993,332.37 = 86,128,661.10 : x
  2. Step 2: Convert to fraction form
    152,208,866.10/209,993,332.37 = 86,128,661.10/x
  3. Step 3: Cross multiply
    152,208,866.10x = 209,993,332.37 × 86,128,661.10
  4. Step 4: Simplify right side
    152,208,866.10x = 18,086,444,556,524,748
  5. Step 5: Solve for x
    x = 18,086,444,556,524,748/152,208,866.10
  6. Step 6: Final answer
    x = 118,826,485.08

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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.