Home / 7,128,001.90-10,692,002.85-2,079,312.40

Finding the Fourth Proportional to 7,128,001.90, 10,692,002.85 and 2,079,312.40

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Solution

The fourth proportional to 7,128,001.90, 10,692,002.85 and 2,079,312.40 is: 3,118,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,001.90 : 10,692,002.85 = 2,079,312.40 : x
  2. Step 2: Convert to fraction form
    7,128,001.90/10,692,002.85 = 2,079,312.40/x
  3. Step 3: Cross multiply
    7,128,001.90x = 10,692,002.85 × 2,079,312.40
  4. Step 4: Simplify right side
    7,128,001.90x = 22,232,014,106,840.34
  5. Step 5: Solve for x
    x = 22,232,014,106,840.34/7,128,001.90
  6. Step 6: Final answer
    x = 3,118,968.60

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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.