Home / 103,037,807.80-154,424,001.30-78,984,047.80

Finding the Fourth Proportional to 103,037,807.80, 154,424,001.30 and 78,984,047.80

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Solution

The fourth proportional to 103,037,807.80, 154,424,001.30 and 78,984,047.80 is: 118,374,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,037,807.80 : 154,424,001.30 = 78,984,047.80 : x
  2. Step 2: Convert to fraction form
    103,037,807.80/154,424,001.30 = 78,984,047.80/x
  3. Step 3: Cross multiply
    103,037,807.80x = 154,424,001.30 × 78,984,047.80
  4. Step 4: Simplify right side
    103,037,807.80x = 12,197,032,700,146,462
  5. Step 5: Solve for x
    x = 12,197,032,700,146,462/103,037,807.80
  6. Step 6: Final answer
    x = 118,374,342.01

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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.