Home / 106,442,709.40-159,664,064.10-72,430,485.40

Finding the Fourth Proportional to 106,442,709.40, 159,664,064.10 and 72,430,485.40

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Solution

The fourth proportional to 106,442,709.40, 159,664,064.10 and 72,430,485.40 is: 108,645,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,442,709.40 : 159,664,064.10 = 72,430,485.40 : x
  2. Step 2: Convert to fraction form
    106,442,709.40/159,664,064.10 = 72,430,485.40/x
  3. Step 3: Cross multiply
    106,442,709.40x = 159,664,064.10 × 72,430,485.40
  4. Step 4: Simplify right side
    106,442,709.40x = 11,564,545,663,699,714
  5. Step 5: Solve for x
    x = 11,564,545,663,699,714/106,442,709.40
  6. Step 6: Final answer
    x = 108,645,728.10

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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.