Home / 18,779,607.60-28,179,878.02-10,143,533.76

Finding the Fourth Proportional to 18,779,607.60, 28,179,878.02 and 10,143,533.76

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Solution

The fourth proportional to 18,779,607.60, 28,179,878.02 and 10,143,533.76 is: 15,220,954.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779,607.60 : 28,179,878.02 = 10,143,533.76 : x
  2. Step 2: Convert to fraction form
    18,779,607.60/28,179,878.02 = 10,143,533.76/x
  3. Step 3: Cross multiply
    18,779,607.60x = 28,179,878.02 × 10,143,533.76
  4. Step 4: Simplify right side
    18,779,607.60x = 285,843,544,048,551.94
  5. Step 5: Solve for x
    x = 285,843,544,048,551.94/18,779,607.60
  6. Step 6: Final answer
    x = 15,220,954.03

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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.