Home / 21,547,709,220.76-29,736,742,105.58-12,392,245,207.29

Finding the Fourth Proportional to 21,547,709,220.76, 29,736,742,105.58 and 12,392,245,207.29

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Solution

The fourth proportional to 21,547,709,220.76, 29,736,742,105.58 and 12,392,245,207.29 is: 17,101,817,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547,709,220.76 : 29,736,742,105.58 = 12,392,245,207.29 : x
  2. Step 2: Convert to fraction form
    21,547,709,220.76/29,736,742,105.58 = 12,392,245,207.29/x
  3. Step 3: Cross multiply
    21,547,709,220.76x = 29,736,742,105.58 × 12,392,245,207.29
  4. Step 4: Simplify right side
    21,547,709,220.76x = 368,504,999,838,349,524,992
  5. Step 5: Solve for x
    x = 368,504,999,838,349,524,992/21,547,709,220.76
  6. Step 6: Final answer
    x = 17,101,817,927.05

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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.