Home / 86,015,947.40-118,701,955.08-47,384,779.40

Finding the Fourth Proportional to 86,015,947.40, 118,701,955.08 and 47,384,779.40

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Solution

The fourth proportional to 86,015,947.40, 118,701,955.08 and 47,384,779.40 is: 65,390,966.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015,947.40 : 118,701,955.08 = 47,384,779.40 : x
  2. Step 2: Convert to fraction form
    86,015,947.40/118,701,955.08 = 47,384,779.40/x
  3. Step 3: Cross multiply
    86,015,947.40x = 118,701,955.08 × 47,384,779.40
  4. Step 4: Simplify right side
    86,015,947.40x = 5,624,665,955,814,509
  5. Step 5: Solve for x
    x = 5,624,665,955,814,509/86,015,947.40
  6. Step 6: Final answer
    x = 65,390,966.74

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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.