Home / 106,028,681.60-159,043,022.40-78,818,902.40

Finding the Fourth Proportional to 106,028,681.60, 159,043,022.40 and 78,818,902.40

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Solution

The fourth proportional to 106,028,681.60, 159,043,022.40 and 78,818,902.40 is: 118,228,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,028,681.60 : 159,043,022.40 = 78,818,902.40 : x
  2. Step 2: Convert to fraction form
    106,028,681.60/159,043,022.40 = 78,818,902.40/x
  3. Step 3: Cross multiply
    106,028,681.60x = 159,043,022.40 × 78,818,902.40
  4. Step 4: Simplify right side
    106,028,681.60x = 12,535,596,459,946,616
  5. Step 5: Solve for x
    x = 12,535,596,459,946,616/106,028,681.60
  6. Step 6: Final answer
    x = 118,228,353.60

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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.