Home / 811,962,925.68-1,120,509,946.20-440,684,962.16

Finding the Fourth Proportional to 811,962,925.68, 1,120,509,946.20 and 440,684,962.16

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Solution

The fourth proportional to 811,962,925.68, 1,120,509,946.20 and 440,684,962.16 is: 608,145,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,962,925.68 : 1,120,509,946.20 = 440,684,962.16 : x
  2. Step 2: Convert to fraction form
    811,962,925.68/1,120,509,946.20 = 440,684,962.16/x
  3. Step 3: Cross multiply
    811,962,925.68x = 1,120,509,946.20 × 440,684,962.16
  4. Step 4: Simplify right side
    811,962,925.68x = 493,791,883,241,050,688
  5. Step 5: Solve for x
    x = 493,791,883,241,050,688/811,962,925.68
  6. Step 6: Final answer
    x = 608,145,849.55

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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.