Home / 630,594,649.95-870,203,756.97-348,331,015.86

Finding the Fourth Proportional to 630,594,649.95, 870,203,756.97 and 348,331,015.86

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Solution

The fourth proportional to 630,594,649.95, 870,203,756.97 and 348,331,015.86 is: 480,687,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,594,649.95 : 870,203,756.97 = 348,331,015.86 : x
  2. Step 2: Convert to fraction form
    630,594,649.95/870,203,756.97 = 348,331,015.86/x
  3. Step 3: Cross multiply
    630,594,649.95x = 870,203,756.97 × 348,331,015.86
  4. Step 4: Simplify right side
    630,594,649.95x = 303,118,958,670,548,672
  5. Step 5: Solve for x
    x = 303,118,958,670,548,672/630,594,649.95
  6. Step 6: Final answer
    x = 480,687,488.70

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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.