Home / 10,602,638.40-15,903,957.60-9,888,801.60

Finding the Fourth Proportional to 10,602,638.40, 15,903,957.60 and 9,888,801.60

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Solution

The fourth proportional to 10,602,638.40, 15,903,957.60 and 9,888,801.60 is: 14,833,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,602,638.40 : 15,903,957.60 = 9,888,801.60 : x
  2. Step 2: Convert to fraction form
    10,602,638.40/15,903,957.60 = 9,888,801.60/x
  3. Step 3: Cross multiply
    10,602,638.40x = 15,903,957.60 × 9,888,801.60
  4. Step 4: Simplify right side
    10,602,638.40x = 157,271,081,361,212.16
  5. Step 5: Solve for x
    x = 157,271,081,361,212.16/10,602,638.40
  6. Step 6: Final answer
    x = 14,833,202.40

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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.