Home / 712,725,547.68-1,069,169,035.14-639,492,313.56

Finding the Fourth Proportional to 712,725,547.68, 1,069,169,035.14 and 639,492,313.56

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Solution

The fourth proportional to 712,725,547.68, 1,069,169,035.14 and 639,492,313.56 is: 959,310,890.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,725,547.68 : 1,069,169,035.14 = 639,492,313.56 : x
  2. Step 2: Convert to fraction form
    712,725,547.68/1,069,169,035.14 = 639,492,313.56/x
  3. Step 3: Cross multiply
    712,725,547.68x = 1,069,169,035.14 × 639,492,313.56
  4. Step 4: Simplify right side
    712,725,547.68x = 683,725,379,868,391,424
  5. Step 5: Solve for x
    x = 683,725,379,868,391,424/712,725,547.68
  6. Step 6: Final answer
    x = 959,310,890.56

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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.