Home / 630,674,901.30-945,368,499.15-426,223,643.70

Finding the Fourth Proportional to 630,674,901.30, 945,368,499.15 and 426,223,643.70

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Solution

The fourth proportional to 630,674,901.30, 945,368,499.15 and 426,223,643.70 is: 638,900,336.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,674,901.30 : 945,368,499.15 = 426,223,643.70 : x
  2. Step 2: Convert to fraction form
    630,674,901.30/945,368,499.15 = 426,223,643.70/x
  3. Step 3: Cross multiply
    630,674,901.30x = 945,368,499.15 × 426,223,643.70
  4. Step 4: Simplify right side
    630,674,901.30x = 402,938,406,346,913,344
  5. Step 5: Solve for x
    x = 402,938,406,346,913,344/630,674,901.30
  6. Step 6: Final answer
    x = 638,900,336.00

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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.