Home / 64,539,015.40-90,421,806.20-64,539,015.40

Finding the Fourth Proportional to 64,539,015.40, 90,421,806.20 and 64,539,015.40

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Solution

The fourth proportional to 64,539,015.40, 90,421,806.20 and 64,539,015.40 is: 90,421,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,539,015.40 : 90,421,806.20 = 64,539,015.40 : x
  2. Step 2: Convert to fraction form
    64,539,015.40/90,421,806.20 = 64,539,015.40/x
  3. Step 3: Cross multiply
    64,539,015.40x = 90,421,806.20 × 64,539,015.40
  4. Step 4: Simplify right side
    64,539,015.40x = 5,835,734,342,837,616
  5. Step 5: Solve for x
    x = 5,835,734,342,837,616/64,539,015.40
  6. Step 6: Final answer
    x = 90,421,806.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.