Home / 772,689,631.80-1,159,090,434.90-465,319,903.80

Finding the Fourth Proportional to 772,689,631.80, 1,159,090,434.90 and 465,319,903.80

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Solution

The fourth proportional to 772,689,631.80, 1,159,090,434.90 and 465,319,903.80 is: 698,013,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,689,631.80 : 1,159,090,434.90 = 465,319,903.80 : x
  2. Step 2: Convert to fraction form
    772,689,631.80/1,159,090,434.90 = 465,319,903.80/x
  3. Step 3: Cross multiply
    772,689,631.80x = 1,159,090,434.90 × 465,319,903.80
  4. Step 4: Simplify right side
    772,689,631.80x = 539,347,849,663,168,192
  5. Step 5: Solve for x
    x = 539,347,849,663,168,192/772,689,631.80
  6. Step 6: Final answer
    x = 698,013,571.64

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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.