Home / 130,837,483.62-180,556,921.53-72,102,256.02

Finding the Fourth Proportional to 130,837,483.62, 180,556,921.53 and 72,102,256.02

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Solution

The fourth proportional to 130,837,483.62, 180,556,921.53 and 72,102,256.02 is: 99,501,771.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,837,483.62 : 180,556,921.53 = 72,102,256.02 : x
  2. Step 2: Convert to fraction form
    130,837,483.62/180,556,921.53 = 72,102,256.02/x
  3. Step 3: Cross multiply
    130,837,483.62x = 180,556,921.53 × 72,102,256.02
  4. Step 4: Simplify right side
    130,837,483.62x = 13,018,561,382,339,110
  5. Step 5: Solve for x
    x = 13,018,561,382,339,110/130,837,483.62
  6. Step 6: Final answer
    x = 99,501,771.37

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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.