Home / 1,919,215,985.40-2,878,823,978.10-1,570,537,545.30

Finding the Fourth Proportional to 1,919,215,985.40, 2,878,823,978.10 and 1,570,537,545.30

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Solution

The fourth proportional to 1,919,215,985.40, 2,878,823,978.10 and 1,570,537,545.30 is: 2,355,806,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,215,985.40 : 2,878,823,978.10 = 1,570,537,545.30 : x
  2. Step 2: Convert to fraction form
    1,919,215,985.40/2,878,823,978.10 = 1,570,537,545.30/x
  3. Step 3: Cross multiply
    1,919,215,985.40x = 2,878,823,978.10 × 1,570,537,545.30
  4. Step 4: Simplify right side
    1,919,215,985.40x = 4,521,301,143,915,954,688
  5. Step 5: Solve for x
    x = 4,521,301,143,915,954,688/1,919,215,985.40
  6. Step 6: Final answer
    x = 2,355,806,317.95

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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.