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Finding the Fourth Proportional to 277,435,404.40, 416,153,106.60 and 260,429,292.40

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Solution

The fourth proportional to 277,435,404.40, 416,153,106.60 and 260,429,292.40 is: 390,643,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,435,404.40 : 416,153,106.60 = 260,429,292.40 : x
  2. Step 2: Convert to fraction form
    277,435,404.40/416,153,106.60 = 260,429,292.40/x
  3. Step 3: Cross multiply
    277,435,404.40x = 416,153,106.60 × 260,429,292.40
  4. Step 4: Simplify right side
    277,435,404.40x = 108,378,459,081,899,776
  5. Step 5: Solve for x
    x = 108,378,459,081,899,776/277,435,404.40
  6. Step 6: Final answer
    x = 390,643,938.60

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1.5x scale

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.