Home / 19,406,411.50-29,142,564.08-12,970,842.80

Finding the Fourth Proportional to 19,406,411.50, 29,142,564.08 and 12,970,842.80

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Solution

The fourth proportional to 19,406,411.50, 29,142,564.08 and 12,970,842.80 is: 19,478,285.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406,411.50 : 29,142,564.08 = 12,970,842.80 : x
  2. Step 2: Convert to fraction form
    19,406,411.50/29,142,564.08 = 12,970,842.80/x
  3. Step 3: Cross multiply
    19,406,411.50x = 29,142,564.08 × 12,970,842.80
  4. Step 4: Simplify right side
    19,406,411.50x = 378,003,617,470,606.62
  5. Step 5: Solve for x
    x = 378,003,617,470,606.62/19,406,411.50
  6. Step 6: Final answer
    x = 19,478,285.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.