Home / 140,042,139.86-193,258,420.46-77,318,359.19

Finding the Fourth Proportional to 140,042,139.86, 193,258,420.46 and 77,318,359.19

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Solution

The fourth proportional to 140,042,139.86, 193,258,420.46 and 77,318,359.19 is: 106,699,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,042,139.86 : 193,258,420.46 = 77,318,359.19 : x
  2. Step 2: Convert to fraction form
    140,042,139.86/193,258,420.46 = 77,318,359.19/x
  3. Step 3: Cross multiply
    140,042,139.86x = 193,258,420.46 × 77,318,359.19
  4. Step 4: Simplify right side
    140,042,139.86x = 14,942,423,968,265,442
  5. Step 5: Solve for x
    x = 14,942,423,968,265,442/140,042,139.86
  6. Step 6: Final answer
    x = 106,699,483.34

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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.