Home / 1,167,547,298.64-1,611,215,110.56-638,911,144.59

Finding the Fourth Proportional to 1,167,547,298.64, 1,611,215,110.56 and 638,911,144.59

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Solution

The fourth proportional to 1,167,547,298.64, 1,611,215,110.56 and 638,911,144.59 is: 881,697,291.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,547,298.64 : 1,611,215,110.56 = 638,911,144.59 : x
  2. Step 2: Convert to fraction form
    1,167,547,298.64/1,611,215,110.56 = 638,911,144.59/x
  3. Step 3: Cross multiply
    1,167,547,298.64x = 1,611,215,110.56 × 638,911,144.59
  4. Step 4: Simplify right side
    1,167,547,298.64x = 1,029,423,290,468,593,024
  5. Step 5: Solve for x
    x = 1,029,423,290,468,593,024/1,167,547,298.64
  6. Step 6: Final answer
    x = 881,697,291.12

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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.