Home / 1,438,520,417,398.40-2,157,913,265,833.90-470,433,879,628.20

Finding the Fourth Proportional to 1,438,520,417,398.40, 2,157,913,265,833.90 and 470,433,879,628.20

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Solution

The fourth proportional to 1,438,520,417,398.40, 2,157,913,265,833.90 and 470,433,879,628.20 is: 705,694,196,112.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,520,417,398.40 : 2,157,913,265,833.90 = 470,433,879,628.20 : x
  2. Step 2: Convert to fraction form
    1,438,520,417,398.40/2,157,913,265,833.90 = 470,433,879,628.20/x
  3. Step 3: Cross multiply
    1,438,520,417,398.40x = 2,157,913,265,833.90 × 470,433,879,628.20
  4. Step 4: Simplify right side
    1,438,520,417,398.40x = 1,015,155,509,547,400,886,747,136
  5. Step 5: Solve for x
    x = 1,015,155,509,547,400,886,747,136/1,438,520,417,398.40
  6. Step 6: Final answer
    x = 705,694,196,112.51

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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.