Home / 430,687,246.20-646,030,869.30-171,942,401.40

Finding the Fourth Proportional to 430,687,246.20, 646,030,869.30 and 171,942,401.40

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Solution

The fourth proportional to 430,687,246.20, 646,030,869.30 and 171,942,401.40 is: 257,913,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,687,246.20 : 646,030,869.30 = 171,942,401.40 : x
  2. Step 2: Convert to fraction form
    430,687,246.20/646,030,869.30 = 171,942,401.40/x
  3. Step 3: Cross multiply
    430,687,246.20x = 646,030,869.30 × 171,942,401.40
  4. Step 4: Simplify right side
    430,687,246.20x = 111,080,099,045,971,536
  5. Step 5: Solve for x
    x = 111,080,099,045,971,536/430,687,246.20
  6. Step 6: Final answer
    x = 257,913,602.10

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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.