Home / 278,301,534.40-417,317,776.80-103,303,898.56

Finding the Fourth Proportional to 278,301,534.40, 417,317,776.80 and 103,303,898.56

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Solution

The fourth proportional to 278,301,534.40, 417,317,776.80 and 103,303,898.56 is: 154,905,913.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,301,534.40 : 417,317,776.80 = 103,303,898.56 : x
  2. Step 2: Convert to fraction form
    278,301,534.40/417,317,776.80 = 103,303,898.56/x
  3. Step 3: Cross multiply
    278,301,534.40x = 417,317,776.80 × 103,303,898.56
  4. Step 4: Simplify right side
    278,301,534.40x = 43,110,553,281,831,920
  5. Step 5: Solve for x
    x = 43,110,553,281,831,920/278,301,534.40
  6. Step 6: Final answer
    x = 154,905,913.02

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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.