Home / 1,205,863,981.40-1,808,367,916.19-353,803,685.38

Finding the Fourth Proportional to 1,205,863,981.40, 1,808,367,916.19 and 353,803,685.38

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Solution

The fourth proportional to 1,205,863,981.40, 1,808,367,916.19 and 353,803,685.38 is: 530,579,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,863,981.40 : 1,808,367,916.19 = 353,803,685.38 : x
  2. Step 2: Convert to fraction form
    1,205,863,981.40/1,808,367,916.19 = 353,803,685.38/x
  3. Step 3: Cross multiply
    1,205,863,981.40x = 1,808,367,916.19 × 353,803,685.38
  4. Step 4: Simplify right side
    1,205,863,981.40x = 639,807,233,264,683,008
  5. Step 5: Solve for x
    x = 639,807,233,264,683,008/1,205,863,981.40
  6. Step 6: Final answer
    x = 530,579,935.33

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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.