Home / 130,700,538,029.79-180,364,909,057.27-72,831,356,918.69

Finding the Fourth Proportional to 130,700,538,029.79, 180,364,909,057.27 and 72,831,356,918.69

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Solution

The fourth proportional to 130,700,538,029.79, 180,364,909,057.27 and 72,831,356,918.69 is: 100,506,250,893.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,700,538,029.79 : 180,364,909,057.27 = 72,831,356,918.69 : x
  2. Step 2: Convert to fraction form
    130,700,538,029.79/180,364,909,057.27 = 72,831,356,918.69/x
  3. Step 3: Cross multiply
    130,700,538,029.79x = 180,364,909,057.27 × 72,831,356,918.69
  4. Step 4: Simplify right side
    130,700,538,029.79x = 13,136,221,067,157,094,531,072
  5. Step 5: Solve for x
    x = 13,136,221,067,157,094,531,072/130,700,538,029.79
  6. Step 6: Final answer
    x = 100,506,250,893.65

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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.