Home / 666,238,639.24-919,438,054.16-368,880,887.80

Finding the Fourth Proportional to 666,238,639.24, 919,438,054.16 and 368,880,887.80

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Solution

The fourth proportional to 666,238,639.24, 919,438,054.16 and 368,880,887.80 is: 509,071,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,238,639.24 : 919,438,054.16 = 368,880,887.80 : x
  2. Step 2: Convert to fraction form
    666,238,639.24/919,438,054.16 = 368,880,887.80/x
  3. Step 3: Cross multiply
    666,238,639.24x = 919,438,054.16 × 368,880,887.80
  4. Step 4: Simplify right side
    666,238,639.24x = 339,163,125,695,645,312
  5. Step 5: Solve for x
    x = 339,163,125,695,645,312/666,238,639.24
  6. Step 6: Final answer
    x = 509,071,533.41

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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.