Home / 1,510,210,243.71-2,084,194,881.81-915,519,793.10

Finding the Fourth Proportional to 1,510,210,243.71, 2,084,194,881.81 and 915,519,793.10

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Solution

The fourth proportional to 1,510,210,243.71, 2,084,194,881.81 and 915,519,793.10 is: 1,263,480,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,210,243.71 : 2,084,194,881.81 = 915,519,793.10 : x
  2. Step 2: Convert to fraction form
    1,510,210,243.71/2,084,194,881.81 = 915,519,793.10/x
  3. Step 3: Cross multiply
    1,510,210,243.71x = 2,084,194,881.81 × 915,519,793.10
  4. Step 4: Simplify right side
    1,510,210,243.71x = 1,908,121,666,964,349,184
  5. Step 5: Solve for x
    x = 1,908,121,666,964,349,184/1,510,210,243.71
  6. Step 6: Final answer
    x = 1,263,480,813.29

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Double scale
Find fourth proportional to 1,510,210,244.71, 2,084,194,883.19 and 915,519,794.10
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1.5x scale

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.