Home / 28,256,217,215.66-42,392,596,542.30-9,111,443,438.40

Finding the Fourth Proportional to 28,256,217,215.66, 42,392,596,542.30 and 9,111,443,438.40

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Solution

The fourth proportional to 28,256,217,215.66, 42,392,596,542.30 and 9,111,443,438.40 is: 13,669,832,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,217,215.66 : 42,392,596,542.30 = 9,111,443,438.40 : x
  2. Step 2: Convert to fraction form
    28,256,217,215.66/42,392,596,542.30 = 9,111,443,438.40/x
  3. Step 3: Cross multiply
    28,256,217,215.66x = 42,392,596,542.30 × 9,111,443,438.40
  4. Step 4: Simplify right side
    28,256,217,215.66x = 386,257,745,602,077,851,648
  5. Step 5: Solve for x
    x = 386,257,745,602,077,851,648/28,256,217,215.66
  6. Step 6: Final answer
    x = 13,669,832,117.09

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1.5x scale

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.