Home / 630,432,029.40-945,648,044.10-388,567,325.40

Finding the Fourth Proportional to 630,432,029.40, 945,648,044.10 and 388,567,325.40

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Solution

The fourth proportional to 630,432,029.40, 945,648,044.10 and 388,567,325.40 is: 582,850,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,432,029.40 : 945,648,044.10 = 388,567,325.40 : x
  2. Step 2: Convert to fraction form
    630,432,029.40/945,648,044.10 = 388,567,325.40/x
  3. Step 3: Cross multiply
    630,432,029.40x = 945,648,044.10 × 388,567,325.40
  4. Step 4: Simplify right side
    630,432,029.40x = 367,447,931,265,678,208
  5. Step 5: Solve for x
    x = 367,447,931,265,678,208/630,432,029.40
  6. Step 6: Final answer
    x = 582,850,988.10

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1.5x scale

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.