Home / 20,468,417,554.36-28,247,877,887.84-11,312,749,432.04

Finding the Fourth Proportional to 20,468,417,554.36, 28,247,877,887.84 and 11,312,749,432.04

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Solution

The fourth proportional to 20,468,417,554.36, 28,247,877,887.84 and 11,312,749,432.04 is: 15,612,402,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468,417,554.36 : 28,247,877,887.84 = 11,312,749,432.04 : x
  2. Step 2: Convert to fraction form
    20,468,417,554.36/28,247,877,887.84 = 11,312,749,432.04/x
  3. Step 3: Cross multiply
    20,468,417,554.36x = 28,247,877,887.84 × 11,312,749,432.04
  4. Step 4: Simplify right side
    20,468,417,554.36x = 319,561,164,531,997,278,208
  5. Step 5: Solve for x
    x = 319,561,164,531,997,278,208/20,468,417,554.36
  6. Step 6: Final answer
    x = 15,612,402,066.91

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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.