Home / 1,260,157,312.80-1,890,235,969.20-340,032,175.20

Finding the Fourth Proportional to 1,260,157,312.80, 1,890,235,969.20 and 340,032,175.20

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Solution

The fourth proportional to 1,260,157,312.80, 1,890,235,969.20 and 340,032,175.20 is: 510,048,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,157,312.80 : 1,890,235,969.20 = 340,032,175.20 : x
  2. Step 2: Convert to fraction form
    1,260,157,312.80/1,890,235,969.20 = 340,032,175.20/x
  3. Step 3: Cross multiply
    1,260,157,312.80x = 1,890,235,969.20 × 340,032,175.20
  4. Step 4: Simplify right side
    1,260,157,312.80x = 642,741,048,248,356,224
  5. Step 5: Solve for x
    x = 642,741,048,248,356,224/1,260,157,312.80
  6. Step 6: Final answer
    x = 510,048,262.80

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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.