Home / 696,403,490.23-961,036,784.25-383,130,978.16

Finding the Fourth Proportional to 696,403,490.23, 961,036,784.25 and 383,130,978.16

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Solution

The fourth proportional to 696,403,490.23, 961,036,784.25 and 383,130,978.16 is: 528,720,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,403,490.23 : 961,036,784.25 = 383,130,978.16 : x
  2. Step 2: Convert to fraction form
    696,403,490.23/961,036,784.25 = 383,130,978.16/x
  3. Step 3: Cross multiply
    696,403,490.23x = 961,036,784.25 × 383,130,978.16
  4. Step 4: Simplify right side
    696,403,490.23x = 368,202,963,197,443,392
  5. Step 5: Solve for x
    x = 368,202,963,197,443,392/696,403,490.23
  6. Step 6: Final answer
    x = 528,720,732.11

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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.