Home / 191,266,021.21-286,898,068.80-74,693,214.78

Finding the Fourth Proportional to 191,266,021.21, 286,898,068.80 and 74,693,214.78

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Solution

The fourth proportional to 191,266,021.21, 286,898,068.80 and 74,693,214.78 is: 112,039,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,266,021.21 : 286,898,068.80 = 74,693,214.78 : x
  2. Step 2: Convert to fraction form
    191,266,021.21/286,898,068.80 = 74,693,214.78/x
  3. Step 3: Cross multiply
    191,266,021.21x = 286,898,068.80 × 74,693,214.78
  4. Step 4: Simplify right side
    191,266,021.21x = 21,429,339,073,032,352
  5. Step 5: Solve for x
    x = 21,429,339,073,032,352/191,266,021.21
  6. Step 6: Final answer
    x = 112,039,446.10

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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.