Home / 311,000,649.35-429,178,345.52-169,871,959.74

Finding the Fourth Proportional to 311,000,649.35, 429,178,345.52 and 169,871,959.74

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Solution

The fourth proportional to 311,000,649.35, 429,178,345.52 and 169,871,959.74 is: 234,421,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,000,649.35 : 429,178,345.52 = 169,871,959.74 : x
  2. Step 2: Convert to fraction form
    311,000,649.35/429,178,345.52 = 169,871,959.74/x
  3. Step 3: Cross multiply
    311,000,649.35x = 429,178,345.52 × 169,871,959.74
  4. Step 4: Simplify right side
    311,000,649.35x = 72,905,366,630,603,888
  5. Step 5: Solve for x
    x = 72,905,366,630,603,888/311,000,649.35
  6. Step 6: Final answer
    x = 234,421,911.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.