Home / 157,031,871.40-235,585,131.90-66,108,658.60

Finding the Fourth Proportional to 157,031,871.40, 235,585,131.90 and 66,108,658.60

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Solution

The fourth proportional to 157,031,871.40, 235,585,131.90 and 66,108,658.60 is: 99,178,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,031,871.40 : 235,585,131.90 = 66,108,658.60 : x
  2. Step 2: Convert to fraction form
    157,031,871.40/235,585,131.90 = 66,108,658.60/x
  3. Step 3: Cross multiply
    157,031,871.40x = 235,585,131.90 × 66,108,658.60
  4. Step 4: Simplify right side
    157,031,871.40x = 15,574,217,056,013,070
  5. Step 5: Solve for x
    x = 15,574,217,056,013,070/157,031,871.40
  6. Step 6: Final answer
    x = 99,178,701.22

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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.