Home / 639,144,056.40-958,716,084.60-435,070,712.40

Finding the Fourth Proportional to 639,144,056.40, 958,716,084.60 and 435,070,712.40

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Solution

The fourth proportional to 639,144,056.40, 958,716,084.60 and 435,070,712.40 is: 652,606,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,144,056.40 : 958,716,084.60 = 435,070,712.40 : x
  2. Step 2: Convert to fraction form
    639,144,056.40/958,716,084.60 = 435,070,712.40/x
  3. Step 3: Cross multiply
    639,144,056.40x = 958,716,084.60 × 435,070,712.40
  4. Step 4: Simplify right side
    639,144,056.40x = 417,109,289,916,260,672
  5. Step 5: Solve for x
    x = 417,109,289,916,260,672/639,144,056.40
  6. Step 6: Final answer
    x = 652,606,068.60

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Similar ratio
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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.