Home / 13,403,059,978.68-18,495,997,114.05-7,382,126,069.28

Finding the Fourth Proportional to 13,403,059,978.68, 18,495,997,114.05 and 7,382,126,069.28

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Solution

The fourth proportional to 13,403,059,978.68, 18,495,997,114.05 and 7,382,126,069.28 is: 10,187,209,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403,059,978.68 : 18,495,997,114.05 = 7,382,126,069.28 : x
  2. Step 2: Convert to fraction form
    13,403,059,978.68/18,495,997,114.05 = 7,382,126,069.28/x
  3. Step 3: Cross multiply
    13,403,059,978.68x = 18,495,997,114.05 × 7,382,126,069.28
  4. Step 4: Simplify right side
    13,403,059,978.68x = 136,539,782,472,956,133,376
  5. Step 5: Solve for x
    x = 136,539,782,472,956,133,376/13,403,059,978.68
  6. Step 6: Final answer
    x = 10,187,209,688.69

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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.