Home / 1,990,819,957.40-2,985,831,804.90-955,678,837.40

Finding the Fourth Proportional to 1,990,819,957.40, 2,985,831,804.90 and 955,678,837.40

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Solution

The fourth proportional to 1,990,819,957.40, 2,985,831,804.90 and 955,678,837.40 is: 1,433,327,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,819,957.40 : 2,985,831,804.90 = 955,678,837.40 : x
  2. Step 2: Convert to fraction form
    1,990,819,957.40/2,985,831,804.90 = 955,678,837.40/x
  3. Step 3: Cross multiply
    1,990,819,957.40x = 2,985,831,804.90 × 955,678,837.40
  4. Step 4: Simplify right side
    1,990,819,957.40x = 2,853,496,267,978,775,552
  5. Step 5: Solve for x
    x = 2,853,496,267,978,775,552/1,990,819,957.40
  6. Step 6: Final answer
    x = 1,433,327,136.07

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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.