Home / 772,085,411.20-1,158,128,116.80-651,153,059.20

Finding the Fourth Proportional to 772,085,411.20, 1,158,128,116.80 and 651,153,059.20

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Solution

The fourth proportional to 772,085,411.20, 1,158,128,116.80 and 651,153,059.20 is: 976,729,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,085,411.20 : 1,158,128,116.80 = 651,153,059.20 : x
  2. Step 2: Convert to fraction form
    772,085,411.20/1,158,128,116.80 = 651,153,059.20/x
  3. Step 3: Cross multiply
    772,085,411.20x = 1,158,128,116.80 × 651,153,059.20
  4. Step 4: Simplify right side
    772,085,411.20x = 754,118,666,199,854,976
  5. Step 5: Solve for x
    x = 754,118,666,199,854,976/772,085,411.20
  6. Step 6: Final answer
    x = 976,729,588.80

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Double scale
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1.5x scale

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.