Home / 710,579,482.12-980,533,877.61-393,032,893.87

Finding the Fourth Proportional to 710,579,482.12, 980,533,877.61 and 393,032,893.87

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Solution

The fourth proportional to 710,579,482.12, 980,533,877.61 and 393,032,893.87 is: 542,348,994.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,579,482.12 : 980,533,877.61 = 393,032,893.87 : x
  2. Step 2: Convert to fraction form
    710,579,482.12/980,533,877.61 = 393,032,893.87/x
  3. Step 3: Cross multiply
    710,579,482.12x = 980,533,877.61 × 393,032,893.87
  4. Step 4: Simplify right side
    710,579,482.12x = 385,382,067,454,630,720
  5. Step 5: Solve for x
    x = 385,382,067,454,630,720/710,579,482.12
  6. Step 6: Final answer
    x = 542,348,994.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.