Home / 1,320,099,480,903.40-1,980,149,221,355-472,113,514,580.15

Finding the Fourth Proportional to 1,320,099,480,903.40, 1,980,149,221,355 and 472,113,514,580.15

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Solution

The fourth proportional to 1,320,099,480,903.40, 1,980,149,221,355 and 472,113,514,580.15 is: 708,170,271,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,099,480,903.40 : 1,980,149,221,355 = 472,113,514,580.15 : x
  2. Step 2: Convert to fraction form
    1,320,099,480,903.40/1,980,149,221,355 = 472,113,514,580.15/x
  3. Step 3: Cross multiply
    1,320,099,480,903.40x = 1,980,149,221,355 × 472,113,514,580.15
  4. Step 4: Simplify right side
    1,320,099,480,903.40x = 934,855,208,287,056,487,776,256
  5. Step 5: Solve for x
    x = 934,855,208,287,056,487,776,256/1,320,099,480,903.40
  6. Step 6: Final answer
    x = 708,170,271,870.19

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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.