Home / 1,438,520,417,398.90-2,157,913,265,834.60-470,433,879,628.70

Finding the Fourth Proportional to 1,438,520,417,398.90, 2,157,913,265,834.60 and 470,433,879,628.70

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Solution

The fourth proportional to 1,438,520,417,398.90, 2,157,913,265,834.60 and 470,433,879,628.70 is: 705,694,196,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,520,417,398.90 : 2,157,913,265,834.60 = 470,433,879,628.70 : x
  2. Step 2: Convert to fraction form
    1,438,520,417,398.90/2,157,913,265,834.60 = 470,433,879,628.70/x
  3. Step 3: Cross multiply
    1,438,520,417,398.90x = 2,157,913,265,834.60 × 470,433,879,628.70
  4. Step 4: Simplify right side
    1,438,520,417,398.90x = 1,015,155,509,548,809,233,367,040
  5. Step 5: Solve for x
    x = 1,015,155,509,548,809,233,367,040/1,438,520,417,398.90
  6. Step 6: Final answer
    x = 705,694,196,113.25

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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.