Home / 15,724,128,779.52-21,699,833,135.52-9,299,456,115.84

Finding the Fourth Proportional to 15,724,128,779.52, 21,699,833,135.52 and 9,299,456,115.84

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Solution

The fourth proportional to 15,724,128,779.52, 21,699,833,135.52 and 9,299,456,115.84 is: 12,833,566,094.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724,128,779.52 : 21,699,833,135.52 = 9,299,456,115.84 : x
  2. Step 2: Convert to fraction form
    15,724,128,779.52/21,699,833,135.52 = 9,299,456,115.84/x
  3. Step 3: Cross multiply
    15,724,128,779.52x = 21,699,833,135.52 × 9,299,456,115.84
  4. Step 4: Simplify right side
    15,724,128,779.52x = 201,796,645,964,818,939,904
  5. Step 5: Solve for x
    x = 201,796,645,964,818,939,904/15,724,128,779.52
  6. Step 6: Final answer
    x = 12,833,566,094.15

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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.