Home / 1,020,343,019.12-1,529,603,106.68-398,413,560.32

Finding the Fourth Proportional to 1,020,343,019.12, 1,529,603,106.68 and 398,413,560.32

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Solution

The fourth proportional to 1,020,343,019.12, 1,529,603,106.68 and 398,413,560.32 is: 597,264,457.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,343,019.12 : 1,529,603,106.68 = 398,413,560.32 : x
  2. Step 2: Convert to fraction form
    1,020,343,019.12/1,529,603,106.68 = 398,413,560.32/x
  3. Step 3: Cross multiply
    1,020,343,019.12x = 1,529,603,106.68 × 398,413,560.32
  4. Step 4: Simplify right side
    1,020,343,019.12x = 609,414,619,608,911,616
  5. Step 5: Solve for x
    x = 609,414,619,608,911,616/1,020,343,019.12
  6. Step 6: Final answer
    x = 597,264,457.33

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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.