Home / 210,514,209.48-315,155,564.19-122,807,548.80

Finding the Fourth Proportional to 210,514,209.48, 315,155,564.19 and 122,807,548.80

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Solution

The fourth proportional to 210,514,209.48, 315,155,564.19 and 122,807,548.80 is: 183,852,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,514,209.48 : 315,155,564.19 = 122,807,548.80 : x
  2. Step 2: Convert to fraction form
    210,514,209.48/315,155,564.19 = 122,807,548.80/x
  3. Step 3: Cross multiply
    210,514,209.48x = 315,155,564.19 × 122,807,548.80
  4. Step 4: Simplify right side
    210,514,209.48x = 38,703,482,328,854,960
  5. Step 5: Solve for x
    x = 38,703,482,328,854,960/210,514,209.48
  6. Step 6: Final answer
    x = 183,852,113.47

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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.