Home / 21,547,709,221.76-29,736,742,106.96-12,392,245,208.29

Finding the Fourth Proportional to 21,547,709,221.76, 29,736,742,106.96 and 12,392,245,208.29

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Solution

The fourth proportional to 21,547,709,221.76, 29,736,742,106.96 and 12,392,245,208.29 is: 17,101,817,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547,709,221.76 : 29,736,742,106.96 = 12,392,245,208.29 : x
  2. Step 2: Convert to fraction form
    21,547,709,221.76/29,736,742,106.96 = 12,392,245,208.29/x
  3. Step 3: Cross multiply
    21,547,709,221.76x = 29,736,742,106.96 × 12,392,245,208.29
  4. Step 4: Simplify right side
    21,547,709,221.76x = 368,504,999,885,130,563,584
  5. Step 5: Solve for x
    x = 368,504,999,885,130,563,584/21,547,709,221.76
  6. Step 6: Final answer
    x = 17,101,817,928.42

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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.