Home / 21,580,629,525.19-29,779,756,895.46-12,547,746,789.58

Finding the Fourth Proportional to 21,580,629,525.19, 29,779,756,895.46 and 12,547,746,789.58

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Solution

The fourth proportional to 21,580,629,525.19, 29,779,756,895.46 and 12,547,746,789.58 is: 17,315,011,526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,629,525.19 : 29,779,756,895.46 = 12,547,746,789.58 : x
  2. Step 2: Convert to fraction form
    21,580,629,525.19/29,779,756,895.46 = 12,547,746,789.58/x
  3. Step 3: Cross multiply
    21,580,629,525.19x = 29,779,756,895.46 × 12,547,746,789.58
  4. Step 4: Simplify right side
    21,580,629,525.19x = 373,668,848,979,481,067,520
  5. Step 5: Solve for x
    x = 373,668,848,979,481,067,520/21,580,629,525.19
  6. Step 6: Final answer
    x = 17,315,011,526.58

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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.