Home / 256,836,012.60-385,254,018.90-147,996,895.80

Finding the Fourth Proportional to 256,836,012.60, 385,254,018.90 and 147,996,895.80

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Solution

The fourth proportional to 256,836,012.60, 385,254,018.90 and 147,996,895.80 is: 221,995,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,836,012.60 : 385,254,018.90 = 147,996,895.80 : x
  2. Step 2: Convert to fraction form
    256,836,012.60/385,254,018.90 = 147,996,895.80/x
  3. Step 3: Cross multiply
    256,836,012.60x = 385,254,018.90 × 147,996,895.80
  4. Step 4: Simplify right side
    256,836,012.60x = 57,016,398,891,674,528
  5. Step 5: Solve for x
    x = 57,016,398,891,674,528/256,836,012.60
  6. Step 6: Final answer
    x = 221,995,343.70

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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.