Home / 1,563,708,272.64-2,157,959,556.67-920,009,139.13

Finding the Fourth Proportional to 1,563,708,272.64, 2,157,959,556.67 and 920,009,139.13

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Solution

The fourth proportional to 1,563,708,272.64, 2,157,959,556.67 and 920,009,139.13 is: 1,269,637,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563,708,272.64 : 2,157,959,556.67 = 920,009,139.13 : x
  2. Step 2: Convert to fraction form
    1,563,708,272.64/2,157,959,556.67 = 920,009,139.13/x
  3. Step 3: Cross multiply
    1,563,708,272.64x = 2,157,959,556.67 × 920,009,139.13
  4. Step 4: Simplify right side
    1,563,708,272.64x = 1,985,342,514,009,323,264
  5. Step 5: Solve for x
    x = 1,985,342,514,009,323,264/1,563,708,272.64
  6. Step 6: Final answer
    x = 1,269,637,405.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.