Home / 403,708,618.04-557,118,137.03-218,069,715.74

Finding the Fourth Proportional to 403,708,618.04, 557,118,137.03 and 218,069,715.74

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Solution

The fourth proportional to 403,708,618.04, 557,118,137.03 and 218,069,715.74 is: 300,936,339.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,708,618.04 : 557,118,137.03 = 218,069,715.74 : x
  2. Step 2: Convert to fraction form
    403,708,618.04/557,118,137.03 = 218,069,715.74/x
  3. Step 3: Cross multiply
    403,708,618.04x = 557,118,137.03 × 218,069,715.74
  4. Step 4: Simplify right side
    403,708,618.04x = 121,490,593,771,854,528
  5. Step 5: Solve for x
    x = 121,490,593,771,854,528/403,708,618.04
  6. Step 6: Final answer
    x = 300,936,339.59

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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.