Home / 1,083,445,011.12-1,495,281,754.32-643,411,863.12

Finding the Fourth Proportional to 1,083,445,011.12, 1,495,281,754.32 and 643,411,863.12

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Solution

The fourth proportional to 1,083,445,011.12, 1,495,281,754.32 and 643,411,863.12 is: 887,984,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,445,011.12 : 1,495,281,754.32 = 643,411,863.12 : x
  2. Step 2: Convert to fraction form
    1,083,445,011.12/1,495,281,754.32 = 643,411,863.12/x
  3. Step 3: Cross multiply
    1,083,445,011.12x = 1,495,281,754.32 × 643,411,863.12
  4. Step 4: Simplify right side
    1,083,445,011.12x = 962,082,019,436,373,248
  5. Step 5: Solve for x
    x = 962,082,019,436,373,248/1,083,445,011.12
  6. Step 6: Final answer
    x = 887,984,170.46

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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.