Home / 208,023,602.40-312,035,403.60-100,528,178.40

Finding the Fourth Proportional to 208,023,602.40, 312,035,403.60 and 100,528,178.40

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Solution

The fourth proportional to 208,023,602.40, 312,035,403.60 and 100,528,178.40 is: 150,792,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,023,602.40 : 312,035,403.60 = 100,528,178.40 : x
  2. Step 2: Convert to fraction form
    208,023,602.40/312,035,403.60 = 100,528,178.40/x
  3. Step 3: Cross multiply
    208,023,602.40x = 312,035,403.60 × 100,528,178.40
  4. Step 4: Simplify right side
    208,023,602.40x = 31,368,350,720,216,808
  5. Step 5: Solve for x
    x = 31,368,350,720,216,808/208,023,602.40
  6. Step 6: Final answer
    x = 150,792,267.60

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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.