Home / 403,708,570.79-557,118,071.75-218,069,668.49

Finding the Fourth Proportional to 403,708,570.79, 557,118,071.75 and 218,069,668.49

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Solution

The fourth proportional to 403,708,570.79, 557,118,071.75 and 218,069,668.49 is: 300,936,274.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,708,570.79 : 557,118,071.75 = 218,069,668.49 : x
  2. Step 2: Convert to fraction form
    403,708,570.79/557,118,071.75 = 218,069,668.49/x
  3. Step 3: Cross multiply
    403,708,570.79x = 557,118,071.75 × 218,069,668.49
  4. Step 4: Simplify right side
    403,708,570.79x = 121,490,553,214,070,144
  5. Step 5: Solve for x
    x = 121,490,553,214,070,144/403,708,570.79
  6. Step 6: Final answer
    x = 300,936,274.35

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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.