Home / 21,580,629,524.69-29,779,756,894.77-12,547,746,789.08

Finding the Fourth Proportional to 21,580,629,524.69, 29,779,756,894.77 and 12,547,746,789.08

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Solution

The fourth proportional to 21,580,629,524.69, 29,779,756,894.77 and 12,547,746,789.08 is: 17,315,011,525.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,629,524.69 : 29,779,756,894.77 = 12,547,746,789.08 : x
  2. Step 2: Convert to fraction form
    21,580,629,524.69/29,779,756,894.77 = 12,547,746,789.08/x
  3. Step 3: Cross multiply
    21,580,629,524.69x = 29,779,756,894.77 × 12,547,746,789.08
  4. Step 4: Simplify right side
    21,580,629,524.69x = 373,668,848,955,933,261,824
  5. Step 5: Solve for x
    x = 373,668,848,955,933,261,824/21,580,629,524.69
  6. Step 6: Final answer
    x = 17,315,011,525.89

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Double scale
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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.