Home / 165,510,011.40-248,265,017.10-139,681,978.80

Finding the Fourth Proportional to 165,510,011.40, 248,265,017.10 and 139,681,978.80

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Solution

The fourth proportional to 165,510,011.40, 248,265,017.10 and 139,681,978.80 is: 209,522,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,510,011.40 : 248,265,017.10 = 139,681,978.80 : x
  2. Step 2: Convert to fraction form
    165,510,011.40/248,265,017.10 = 139,681,978.80/x
  3. Step 3: Cross multiply
    165,510,011.40x = 248,265,017.10 × 139,681,978.80
  4. Step 4: Simplify right side
    165,510,011.40x = 34,678,148,855,343,840
  5. Step 5: Solve for x
    x = 34,678,148,855,343,840/165,510,011.40
  6. Step 6: Final answer
    x = 209,522,968.20

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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.