Home / 829,921,690.16-1,145,293,048.44-477,490,612.30

Finding the Fourth Proportional to 829,921,690.16, 1,145,293,048.44 and 477,490,612.30

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Solution

The fourth proportional to 829,921,690.16, 1,145,293,048.44 and 477,490,612.30 is: 658,937,687.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,921,690.16 : 1,145,293,048.44 = 477,490,612.30 : x
  2. Step 2: Convert to fraction form
    829,921,690.16/1,145,293,048.44 = 477,490,612.30/x
  3. Step 3: Cross multiply
    829,921,690.16x = 1,145,293,048.44 × 477,490,612.30
  4. Step 4: Simplify right side
    829,921,690.16x = 546,866,678,962,549,184
  5. Step 5: Solve for x
    x = 546,866,678,962,549,184/829,921,690.16
  6. Step 6: Final answer
    x = 658,937,687.07

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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.