Home / 18,729,559,208.12-28,097,487,934.32-9,286,669,064.36

Finding the Fourth Proportional to 18,729,559,208.12, 28,097,487,934.32 and 9,286,669,064.36

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Solution

The fourth proportional to 18,729,559,208.12, 28,097,487,934.32 and 9,286,669,064.36 is: 13,931,565,024.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729,559,208.12 : 28,097,487,934.32 = 9,286,669,064.36 : x
  2. Step 2: Convert to fraction form
    18,729,559,208.12/28,097,487,934.32 = 9,286,669,064.36/x
  3. Step 3: Cross multiply
    18,729,559,208.12x = 28,097,487,934.32 × 9,286,669,064.36
  4. Step 4: Simplify right side
    18,729,559,208.12x = 260,932,071,985,877,909,504
  5. Step 5: Solve for x
    x = 260,932,071,985,877,909,504/18,729,559,208.12
  6. Step 6: Final answer
    x = 13,931,565,024.38

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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.