Home / 841,687,668,434.45-1,262,531,478,252.90-388,272,421,530.78

Finding the Fourth Proportional to 841,687,668,434.45, 1,262,531,478,252.90 and 388,272,421,530.78

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Solution

The fourth proportional to 841,687,668,434.45, 1,262,531,478,252.90 and 388,272,421,530.78 is: 582,408,621,040.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,687,668,434.45 : 1,262,531,478,252.90 = 388,272,421,530.78 : x
  2. Step 2: Convert to fraction form
    841,687,668,434.45/1,262,531,478,252.90 = 388,272,421,530.78/x
  3. Step 3: Cross multiply
    841,687,668,434.45x = 1,262,531,478,252.90 × 388,272,421,530.78
  4. Step 4: Simplify right side
    841,687,668,434.45x = 490,206,154,320,088,810,913,792
  5. Step 5: Solve for x
    x = 490,206,154,320,088,810,913,792/841,687,668,434.45
  6. Step 6: Final answer
    x = 582,408,621,040.96

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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.