Home / 1,570,496,124.45-2,355,744,186.68-1,328,631,420.45

Finding the Fourth Proportional to 1,570,496,124.45, 2,355,744,186.68 and 1,328,631,420.45

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Solution

The fourth proportional to 1,570,496,124.45, 2,355,744,186.68 and 1,328,631,420.45 is: 1,992,947,130.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,496,124.45 : 2,355,744,186.68 = 1,328,631,420.45 : x
  2. Step 2: Convert to fraction form
    1,570,496,124.45/2,355,744,186.68 = 1,328,631,420.45/x
  3. Step 3: Cross multiply
    1,570,496,124.45x = 2,355,744,186.68 × 1,328,631,420.45
  4. Step 4: Simplify right side
    1,570,496,124.45x = 3,129,915,744,958,835,712
  5. Step 5: Solve for x
    x = 3,129,915,744,958,835,712/1,570,496,124.45
  6. Step 6: Final answer
    x = 1,992,947,130.68

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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.