Home / 13,698,774.86-18,897,142.04-8,470,111.58

Finding the Fourth Proportional to 13,698,774.86, 18,897,142.04 and 8,470,111.58

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Solution

The fourth proportional to 13,698,774.86, 18,897,142.04 and 8,470,111.58 is: 11,684,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698,774.86 : 18,897,142.04 = 8,470,111.58 : x
  2. Step 2: Convert to fraction form
    13,698,774.86/18,897,142.04 = 8,470,111.58/x
  3. Step 3: Cross multiply
    13,698,774.86x = 18,897,142.04 × 8,470,111.58
  4. Step 4: Simplify right side
    13,698,774.86x = 160,060,901,621,908.81
  5. Step 5: Solve for x
    x = 160,060,901,621,908.81/13,698,774.86
  6. Step 6: Final answer
    x = 11,684,322.38

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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.