Home / 103,508,051.20-155,130,200.70-55,009,139.20

Finding the Fourth Proportional to 103,508,051.20, 155,130,200.70 and 55,009,139.20

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Solution

The fourth proportional to 103,508,051.20, 155,130,200.70 and 55,009,139.20 is: 82,443,623.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,508,051.20 : 155,130,200.70 = 55,009,139.20 : x
  2. Step 2: Convert to fraction form
    103,508,051.20/155,130,200.70 = 55,009,139.20/x
  3. Step 3: Cross multiply
    103,508,051.20x = 155,130,200.70 × 55,009,139.20
  4. Step 4: Simplify right side
    103,508,051.20x = 8,533,578,804,430,237
  5. Step 5: Solve for x
    x = 8,533,578,804,430,237/103,508,051.20
  6. Step 6: Final answer
    x = 82,443,623.52

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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.