Home / 163,901,931.20-245,852,896.80-82,272,593.60

Finding the Fourth Proportional to 163,901,931.20, 245,852,896.80 and 82,272,593.60

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Solution

The fourth proportional to 163,901,931.20, 245,852,896.80 and 82,272,593.60 is: 123,408,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,901,931.20 : 245,852,896.80 = 82,272,593.60 : x
  2. Step 2: Convert to fraction form
    163,901,931.20/245,852,896.80 = 82,272,593.60/x
  3. Step 3: Cross multiply
    163,901,931.20x = 245,852,896.80 × 82,272,593.60
  4. Step 4: Simplify right side
    163,901,931.20x = 20,226,955,463,809,140
  5. Step 5: Solve for x
    x = 20,226,955,463,809,140/163,901,931.20
  6. Step 6: Final answer
    x = 123,408,890.40

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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.