Home / 704,426,075.64-972,169,585.38-391,221,520.20

Finding the Fourth Proportional to 704,426,075.64, 972,169,585.38 and 391,221,520.20

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Solution

The fourth proportional to 704,426,075.64, 972,169,585.38 and 391,221,520.20 is: 539,919,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,426,075.64 : 972,169,585.38 = 391,221,520.20 : x
  2. Step 2: Convert to fraction form
    704,426,075.64/972,169,585.38 = 391,221,520.20/x
  3. Step 3: Cross multiply
    704,426,075.64x = 972,169,585.38 × 391,221,520.20
  4. Step 4: Simplify right side
    704,426,075.64x = 380,333,663,084,567,296
  5. Step 5: Solve for x
    x = 380,333,663,084,567,296/704,426,075.64
  6. Step 6: Final answer
    x = 539,919,909.61

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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.