Home / 245,333,643.80-368,000,465.70-142,021,513.40

Finding the Fourth Proportional to 245,333,643.80, 368,000,465.70 and 142,021,513.40

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Solution

The fourth proportional to 245,333,643.80, 368,000,465.70 and 142,021,513.40 is: 213,032,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,333,643.80 : 368,000,465.70 = 142,021,513.40 : x
  2. Step 2: Convert to fraction form
    245,333,643.80/368,000,465.70 = 142,021,513.40/x
  3. Step 3: Cross multiply
    245,333,643.80x = 368,000,465.70 × 142,021,513.40
  4. Step 4: Simplify right side
    245,333,643.80x = 52,263,983,070,618,792
  5. Step 5: Solve for x
    x = 52,263,983,070,618,792/245,333,643.80
  6. Step 6: Final answer
    x = 213,032,270.10

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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.