Home / 21,312,968.66-29,414,590.54-13,976,973.62

Finding the Fourth Proportional to 21,312,968.66, 29,414,590.54 and 13,976,973.62

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Solution

The fourth proportional to 21,312,968.66, 29,414,590.54 and 13,976,973.62 is: 19,289,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,968.66 : 29,414,590.54 = 13,976,973.62 : x
  2. Step 2: Convert to fraction form
    21,312,968.66/29,414,590.54 = 13,976,973.62/x
  3. Step 3: Cross multiply
    21,312,968.66x = 29,414,590.54 × 13,976,973.62
  4. Step 4: Simplify right side
    21,312,968.66x = 411,126,956,020,681.50
  5. Step 5: Solve for x
    x = 411,126,956,020,681.50/21,312,968.66
  6. Step 6: Final answer
    x = 19,289,990.17

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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.