Home / 551,156,690.70-825,884,730.45-478,030,409.10

Finding the Fourth Proportional to 551,156,690.70, 825,884,730.45 and 478,030,409.10

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Solution

The fourth proportional to 551,156,690.70, 825,884,730.45 and 478,030,409.10 is: 716,308,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,156,690.70 : 825,884,730.45 = 478,030,409.10 : x
  2. Step 2: Convert to fraction form
    551,156,690.70/825,884,730.45 = 478,030,409.10/x
  3. Step 3: Cross multiply
    551,156,690.70x = 825,884,730.45 × 478,030,409.10
  4. Step 4: Simplify right side
    551,156,690.70x = 394,798,015,566,456,768
  5. Step 5: Solve for x
    x = 394,798,015,566,456,768/551,156,690.70
  6. Step 6: Final answer
    x = 716,308,124.76

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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.