Home / 415,837,643.20-623,084,618.40-262,208,766.40

Finding the Fourth Proportional to 415,837,643.20, 623,084,618.40 and 262,208,766.40

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Solution

The fourth proportional to 415,837,643.20, 623,084,618.40 and 262,208,766.40 is: 392,889,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,837,643.20 : 623,084,618.40 = 262,208,766.40 : x
  2. Step 2: Convert to fraction form
    415,837,643.20/623,084,618.40 = 262,208,766.40/x
  3. Step 3: Cross multiply
    415,837,643.20x = 623,084,618.40 × 262,208,766.40
  4. Step 4: Simplify right side
    415,837,643.20x = 163,378,249,153,478,752
  5. Step 5: Solve for x
    x = 163,378,249,153,478,752/415,837,643.20
  6. Step 6: Final answer
    x = 392,889,513.07

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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.