Home / 13,651,939,715.52-18,838,916,867.44-7,547,939,378.82

Finding the Fourth Proportional to 13,651,939,715.52, 18,838,916,867.44 and 7,547,939,378.82

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Solution

The fourth proportional to 13,651,939,715.52, 18,838,916,867.44 and 7,547,939,378.82 is: 10,415,736,184.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651,939,715.52 : 18,838,916,867.44 = 7,547,939,378.82 : x
  2. Step 2: Convert to fraction form
    13,651,939,715.52/18,838,916,867.44 = 7,547,939,378.82/x
  3. Step 3: Cross multiply
    13,651,939,715.52x = 18,838,916,867.44 × 7,547,939,378.82
  4. Step 4: Simplify right side
    13,651,939,715.52x = 142,195,002,478,028,963,840
  5. Step 5: Solve for x
    x = 142,195,002,478,028,963,840/13,651,939,715.52
  6. Step 6: Final answer
    x = 10,415,736,184.10

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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.