Home / 805,130,880.10-1,207,696,320.15-455,017,549.30

Finding the Fourth Proportional to 805,130,880.10, 1,207,696,320.15 and 455,017,549.30

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Solution

The fourth proportional to 805,130,880.10, 1,207,696,320.15 and 455,017,549.30 is: 682,526,323.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,130,880.10 : 1,207,696,320.15 = 455,017,549.30 : x
  2. Step 2: Convert to fraction form
    805,130,880.10/1,207,696,320.15 = 455,017,549.30/x
  3. Step 3: Cross multiply
    805,130,880.10x = 1,207,696,320.15 × 455,017,549.30
  4. Step 4: Simplify right side
    805,130,880.10x = 549,523,019,893,281,280
  5. Step 5: Solve for x
    x = 549,523,019,893,281,280/805,130,880.10
  6. Step 6: Final answer
    x = 682,526,323.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.