Home / 21,319,710.39-29,421,376.34-12,152,943.63

Finding the Fourth Proportional to 21,319,710.39, 29,421,376.34 and 12,152,943.63

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Solution

The fourth proportional to 21,319,710.39, 29,421,376.34 and 12,152,943.63 is: 16,771,162.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,319,710.39 : 29,421,376.34 = 12,152,943.63 : x
  2. Step 2: Convert to fraction form
    21,319,710.39/29,421,376.34 = 12,152,943.63/x
  3. Step 3: Cross multiply
    21,319,710.39x = 29,421,376.34 × 12,152,943.63
  4. Step 4: Simplify right side
    21,319,710.39x = 357,556,328,116,271
  5. Step 5: Solve for x
    x = 357,556,328,116,271/21,319,710.39
  6. Step 6: Final answer
    x = 16,771,162.53

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Double scale
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1.5x scale

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.