Home / 130,622,139-180,258,498.84-71,884,803.96

Finding the Fourth Proportional to 130,622,139, 180,258,498.84 and 71,884,803.96

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Solution

The fourth proportional to 130,622,139, 180,258,498.84 and 71,884,803.96 is: 99,201,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,622,139 : 180,258,498.84 = 71,884,803.96 : x
  2. Step 2: Convert to fraction form
    130,622,139/180,258,498.84 = 71,884,803.96/x
  3. Step 3: Cross multiply
    130,622,139x = 180,258,498.84 × 71,884,803.96
  4. Step 4: Simplify right side
    130,622,139x = 12,957,846,851,237,286
  5. Step 5: Solve for x
    x = 12,957,846,851,237,286/130,622,139
  6. Step 6: Final answer
    x = 99,201,000.31

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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.