Home / 389,022,714.18-536,849,740.58-210,406,801.86

Finding the Fourth Proportional to 389,022,714.18, 536,849,740.58 and 210,406,801.86

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Solution

The fourth proportional to 389,022,714.18, 536,849,740.58 and 210,406,801.86 is: 290,360,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,714.18 : 536,849,740.58 = 210,406,801.86 : x
  2. Step 2: Convert to fraction form
    389,022,714.18/536,849,740.58 = 210,406,801.86/x
  3. Step 3: Cross multiply
    389,022,714.18x = 536,849,740.58 × 210,406,801.86
  4. Step 4: Simplify right side
    389,022,714.18x = 112,956,836,993,756,432
  5. Step 5: Solve for x
    x = 112,956,836,993,756,432/389,022,714.18
  6. Step 6: Final answer
    x = 290,360,518.49

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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.