Home / 77,779,811.10-116,641,723.05-39,428,579.10

Finding the Fourth Proportional to 77,779,811.10, 116,641,723.05 and 39,428,579.10

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Solution

The fourth proportional to 77,779,811.10, 116,641,723.05 and 39,428,579.10 is: 59,128,677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,779,811.10 : 116,641,723.05 = 39,428,579.10 : x
  2. Step 2: Convert to fraction form
    77,779,811.10/116,641,723.05 = 39,428,579.10/x
  3. Step 3: Cross multiply
    77,779,811.10x = 116,641,723.05 × 39,428,579.10
  4. Step 4: Simplify right side
    77,779,811.10x = 4,599,017,403,637,218
  5. Step 5: Solve for x
    x = 4,599,017,403,637,218/77,779,811.10
  6. Step 6: Final answer
    x = 59,128,677.98

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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.