Home / 166,483,886.40-249,725,829.60-80,390,444.40

Finding the Fourth Proportional to 166,483,886.40, 249,725,829.60 and 80,390,444.40

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Solution

The fourth proportional to 166,483,886.40, 249,725,829.60 and 80,390,444.40 is: 120,585,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,483,886.40 : 249,725,829.60 = 80,390,444.40 : x
  2. Step 2: Convert to fraction form
    166,483,886.40/249,725,829.60 = 80,390,444.40/x
  3. Step 3: Cross multiply
    166,483,886.40x = 249,725,829.60 × 80,390,444.40
  4. Step 4: Simplify right side
    166,483,886.40x = 20,075,570,419,702,676
  5. Step 5: Solve for x
    x = 20,075,570,419,702,676/166,483,886.40
  6. Step 6: Final answer
    x = 120,585,666.60

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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.