Home / 389,022,714.81-536,849,741.44-210,406,802.49

Finding the Fourth Proportional to 389,022,714.81, 536,849,741.44 and 210,406,802.49

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Solution

The fourth proportional to 389,022,714.81, 536,849,741.44 and 210,406,802.49 is: 290,360,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,714.81 : 536,849,741.44 = 210,406,802.49 : x
  2. Step 2: Convert to fraction form
    389,022,714.81/536,849,741.44 = 210,406,802.49/x
  3. Step 3: Cross multiply
    389,022,714.81x = 536,849,741.44 × 210,406,802.49
  4. Step 4: Simplify right side
    389,022,714.81x = 112,956,837,513,973,648
  5. Step 5: Solve for x
    x = 112,956,837,513,973,648/389,022,714.81
  6. Step 6: Final answer
    x = 290,360,519.36

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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.