Home / 253,395,656.40-380,237,270.40-136,809,458.76

Finding the Fourth Proportional to 253,395,656.40, 380,237,270.40 and 136,809,458.76

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Solution

The fourth proportional to 253,395,656.40, 380,237,270.40 and 136,809,458.76 is: 205,291,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,395,656.40 : 380,237,270.40 = 136,809,458.76 : x
  2. Step 2: Convert to fraction form
    253,395,656.40/380,237,270.40 = 136,809,458.76/x
  3. Step 3: Cross multiply
    253,395,656.40x = 380,237,270.40 × 136,809,458.76
  4. Step 4: Simplify right side
    253,395,656.40x = 52,020,055,163,803,760
  5. Step 5: Solve for x
    x = 52,020,055,163,803,760/253,395,656.40
  6. Step 6: Final answer
    x = 205,291,818.74

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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.