Home / 639,144,059.40-958,716,089.10-435,070,715.40

Finding the Fourth Proportional to 639,144,059.40, 958,716,089.10 and 435,070,715.40

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Solution

The fourth proportional to 639,144,059.40, 958,716,089.10 and 435,070,715.40 is: 652,606,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,144,059.40 : 958,716,089.10 = 435,070,715.40 : x
  2. Step 2: Convert to fraction form
    639,144,059.40/958,716,089.10 = 435,070,715.40/x
  3. Step 3: Cross multiply
    639,144,059.40x = 958,716,089.10 × 435,070,715.40
  4. Step 4: Simplify right side
    639,144,059.40x = 417,109,294,750,227,136
  5. Step 5: Solve for x
    x = 417,109,294,750,227,136/639,144,059.40
  6. Step 6: Final answer
    x = 652,606,073.10

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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.