Home / 278,301,533.40-417,317,775.30-103,303,897.56

Finding the Fourth Proportional to 278,301,533.40, 417,317,775.30 and 103,303,897.56

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Solution

The fourth proportional to 278,301,533.40, 417,317,775.30 and 103,303,897.56 is: 154,905,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,301,533.40 : 417,317,775.30 = 103,303,897.56 : x
  2. Step 2: Convert to fraction form
    278,301,533.40/417,317,775.30 = 103,303,897.56/x
  3. Step 3: Cross multiply
    278,301,533.40x = 417,317,775.30 × 103,303,897.56
  4. Step 4: Simplify right side
    278,301,533.40x = 43,110,552,709,558,304
  5. Step 5: Solve for x
    x = 43,110,552,709,558,304/278,301,533.40
  6. Step 6: Final answer
    x = 154,905,911.52

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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.