Home / 647,064,000.40-970,596,000.60-210,363,840.40

Finding the Fourth Proportional to 647,064,000.40, 970,596,000.60 and 210,363,840.40

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Solution

The fourth proportional to 647,064,000.40, 970,596,000.60 and 210,363,840.40 is: 315,545,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,064,000.40 : 970,596,000.60 = 210,363,840.40 : x
  2. Step 2: Convert to fraction form
    647,064,000.40/970,596,000.60 = 210,363,840.40/x
  3. Step 3: Cross multiply
    647,064,000.40x = 970,596,000.60 × 210,363,840.40
  4. Step 4: Simplify right side
    647,064,000.40x = 204,178,302,163,096,704
  5. Step 5: Solve for x
    x = 204,178,302,163,096,704/647,064,000.40
  6. Step 6: Final answer
    x = 315,545,760.60

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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.