Home / 80,742,430.40-121,141,639.20-35,336,811.20

Finding the Fourth Proportional to 80,742,430.40, 121,141,639.20 and 35,336,811.20

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Solution

The fourth proportional to 80,742,430.40, 121,141,639.20 and 35,336,811.20 is: 53,017,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,742,430.40 : 121,141,639.20 = 35,336,811.20 : x
  2. Step 2: Convert to fraction form
    80,742,430.40/121,141,639.20 = 35,336,811.20/x
  3. Step 3: Cross multiply
    80,742,430.40x = 121,141,639.20 × 35,336,811.20
  4. Step 4: Simplify right side
    80,742,430.40x = 4,280,759,232,868,919.50
  5. Step 5: Solve for x
    x = 4,280,759,232,868,919.50/80,742,430.40
  6. Step 6: Final answer
    x = 53,017,468.16

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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.