Home / 166,243,564.40-249,369,623.40-78,784,559.60

Finding the Fourth Proportional to 166,243,564.40, 249,369,623.40 and 78,784,559.60

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Solution

The fourth proportional to 166,243,564.40, 249,369,623.40 and 78,784,559.60 is: 118,178,866.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,243,564.40 : 249,369,623.40 = 78,784,559.60 : x
  2. Step 2: Convert to fraction form
    166,243,564.40/249,369,623.40 = 78,784,559.60/x
  3. Step 3: Cross multiply
    166,243,564.40x = 249,369,623.40 × 78,784,559.60
  4. Step 4: Simplify right side
    166,243,564.40x = 19,646,475,957,186,852
  5. Step 5: Solve for x
    x = 19,646,475,957,186,852/166,243,564.40
  6. Step 6: Final answer
    x = 118,178,866.22

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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.