Home / 501,553,007.76-692,124,188.72-278,549,054.49

Finding the Fourth Proportional to 501,553,007.76, 692,124,188.72 and 278,549,054.49

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Solution

The fourth proportional to 501,553,007.76, 692,124,188.72 and 278,549,054.49 is: 384,387,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,553,007.76 : 692,124,188.72 = 278,549,054.49 : x
  2. Step 2: Convert to fraction form
    501,553,007.76/692,124,188.72 = 278,549,054.49/x
  3. Step 3: Cross multiply
    501,553,007.76x = 692,124,188.72 × 278,549,054.49
  4. Step 4: Simplify right side
    501,553,007.76x = 192,790,538,356,221,600
  5. Step 5: Solve for x
    x = 192,790,538,356,221,600/501,553,007.76
  6. Step 6: Final answer
    x = 384,387,164.21

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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.