Home / 213,116,730,527.94-319,715,413,977.98-85,641,345,654.20

Finding the Fourth Proportional to 213,116,730,527.94, 319,715,413,977.98 and 85,641,345,654.20

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Solution

The fourth proportional to 213,116,730,527.94, 319,715,413,977.98 and 85,641,345,654.20 is: 128,478,220,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,116,730,527.94 : 319,715,413,977.98 = 85,641,345,654.20 : x
  2. Step 2: Convert to fraction form
    213,116,730,527.94/319,715,413,977.98 = 85,641,345,654.20/x
  3. Step 3: Cross multiply
    213,116,730,527.94x = 319,715,413,977.98 × 85,641,345,654.20
  4. Step 4: Simplify right side
    213,116,730,527.94x = 27,380,858,279,463,827,275,776
  5. Step 5: Solve for x
    x = 27,380,858,279,463,827,275,776/213,116,730,527.94
  6. Step 6: Final answer
    x = 128,478,220,417.68

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1.5x scale

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.