Home / 979,018,510.40-1,465,126,543.20-897,389,172.80

Finding the Fourth Proportional to 979,018,510.40, 1,465,126,543.20 and 897,389,172.80

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Solution

The fourth proportional to 979,018,510.40, 1,465,126,543.20 and 897,389,172.80 is: 1,342,966,126.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,018,510.40 : 1,465,126,543.20 = 897,389,172.80 : x
  2. Step 2: Convert to fraction form
    979,018,510.40/1,465,126,543.20 = 897,389,172.80/x
  3. Step 3: Cross multiply
    979,018,510.40x = 1,465,126,543.20 × 897,389,172.80
  4. Step 4: Simplify right side
    979,018,510.40x = 1,314,788,696,649,571,328
  5. Step 5: Solve for x
    x = 1,314,788,696,649,571,328/979,018,510.40
  6. Step 6: Final answer
    x = 1,342,966,126.47

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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.