Home / 1,229,547,550.16-1,696,789,011.48-672,618,639.80

Finding the Fourth Proportional to 1,229,547,550.16, 1,696,789,011.48 and 672,618,639.80

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Solution

The fourth proportional to 1,229,547,550.16, 1,696,789,011.48 and 672,618,639.80 is: 928,221,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,547,550.16 : 1,696,789,011.48 = 672,618,639.80 : x
  2. Step 2: Convert to fraction form
    1,229,547,550.16/1,696,789,011.48 = 672,618,639.80/x
  3. Step 3: Cross multiply
    1,229,547,550.16x = 1,696,789,011.48 × 672,618,639.80
  4. Step 4: Simplify right side
    1,229,547,550.16x = 1,141,291,916,929,264,128
  5. Step 5: Solve for x
    x = 1,141,291,916,929,264,128/1,229,547,550.16
  6. Step 6: Final answer
    x = 928,221,049.10

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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.