Home / 630,256,882.56-869,899,616.72-369,580,479.36

Finding the Fourth Proportional to 630,256,882.56, 869,899,616.72 and 369,580,479.36

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Solution

The fourth proportional to 630,256,882.56, 869,899,616.72 and 369,580,479.36 is: 510,106,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,256,882.56 : 869,899,616.72 = 369,580,479.36 : x
  2. Step 2: Convert to fraction form
    630,256,882.56/869,899,616.72 = 369,580,479.36/x
  3. Step 3: Cross multiply
    630,256,882.56x = 869,899,616.72 × 369,580,479.36
  4. Step 4: Simplify right side
    630,256,882.56x = 321,497,917,342,457,920
  5. Step 5: Solve for x
    x = 321,497,917,342,457,920/630,256,882.56
  6. Step 6: Final answer
    x = 510,106,158.68

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1.5x scale

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.