Home / 545,306,727.60-817,960,091.40-315,157,345.20

Finding the Fourth Proportional to 545,306,727.60, 817,960,091.40 and 315,157,345.20

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Solution

The fourth proportional to 545,306,727.60, 817,960,091.40 and 315,157,345.20 is: 472,736,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,306,727.60 : 817,960,091.40 = 315,157,345.20 : x
  2. Step 2: Convert to fraction form
    545,306,727.60/817,960,091.40 = 315,157,345.20/x
  3. Step 3: Cross multiply
    545,306,727.60x = 817,960,091.40 × 315,157,345.20
  4. Step 4: Simplify right side
    545,306,727.60x = 257,786,130,885,173,344
  5. Step 5: Solve for x
    x = 257,786,130,885,173,344/545,306,727.60
  6. Step 6: Final answer
    x = 472,736,017.80

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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.