Home / 121,239,543.69-181,776,307.95-43,514,722.80

Finding the Fourth Proportional to 121,239,543.69, 181,776,307.95 and 43,514,722.80

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Solution

The fourth proportional to 121,239,543.69, 181,776,307.95 and 43,514,722.80 is: 65,242,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,239,543.69 : 181,776,307.95 = 43,514,722.80 : x
  2. Step 2: Convert to fraction form
    121,239,543.69/181,776,307.95 = 43,514,722.80/x
  3. Step 3: Cross multiply
    121,239,543.69x = 181,776,307.95 × 43,514,722.80
  4. Step 4: Simplify right side
    121,239,543.69x = 7,909,945,652,051,685
  5. Step 5: Solve for x
    x = 7,909,945,652,051,685/121,239,543.69
  6. Step 6: Final answer
    x = 65,242,291.51

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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.