Home / 832,128,538.40-1,245,804,020.40-808,240,666.40

Finding the Fourth Proportional to 832,128,538.40, 1,245,804,020.40 and 808,240,666.40

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Solution

The fourth proportional to 832,128,538.40, 1,245,804,020.40 and 808,240,666.40 is: 1,210,040,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,128,538.40 : 1,245,804,020.40 = 808,240,666.40 : x
  2. Step 2: Convert to fraction form
    832,128,538.40/1,245,804,020.40 = 808,240,666.40/x
  3. Step 3: Cross multiply
    832,128,538.40x = 1,245,804,020.40 × 808,240,666.40
  4. Step 4: Simplify right side
    832,128,538.40x = 1,006,909,471,651,895,296
  5. Step 5: Solve for x
    x = 1,006,909,471,651,895,296/832,128,538.40
  6. Step 6: Final answer
    x = 1,210,040,787.19

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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.