Home / 500,280,184.42-690,386,719.94-277,276,263.26

Finding the Fourth Proportional to 500,280,184.42, 690,386,719.94 and 277,276,263.26

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Solution

The fourth proportional to 500,280,184.42, 690,386,719.94 and 277,276,263.26 is: 382,641,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280,184.42 : 690,386,719.94 = 277,276,263.26 : x
  2. Step 2: Convert to fraction form
    500,280,184.42/690,386,719.94 = 277,276,263.26/x
  3. Step 3: Cross multiply
    500,280,184.42x = 690,386,719.94 × 277,276,263.26
  4. Step 4: Simplify right side
    500,280,184.42x = 191,427,849,909,291,328
  5. Step 5: Solve for x
    x = 191,427,849,909,291,328/500,280,184.42
  6. Step 6: Final answer
    x = 382,641,279.57

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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.