Home / 651,899,579.20-977,849,368.80-215,267,653.60

Finding the Fourth Proportional to 651,899,579.20, 977,849,368.80 and 215,267,653.60

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Solution

The fourth proportional to 651,899,579.20, 977,849,368.80 and 215,267,653.60 is: 322,901,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,899,579.20 : 977,849,368.80 = 215,267,653.60 : x
  2. Step 2: Convert to fraction form
    651,899,579.20/977,849,368.80 = 215,267,653.60/x
  3. Step 3: Cross multiply
    651,899,579.20x = 977,849,368.80 × 215,267,653.60
  4. Step 4: Simplify right side
    651,899,579.20x = 210,499,339,195,817,024
  5. Step 5: Solve for x
    x = 210,499,339,195,817,024/651,899,579.20
  6. Step 6: Final answer
    x = 322,901,480.40

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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.