Home / 388,197,367.90-535,711,901.18-229,484,692.96

Finding the Fourth Proportional to 388,197,367.90, 535,711,901.18 and 229,484,692.96

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Solution

The fourth proportional to 388,197,367.90, 535,711,901.18 and 229,484,692.96 is: 316,688,600.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,197,367.90 : 535,711,901.18 = 229,484,692.96 : x
  2. Step 2: Convert to fraction form
    388,197,367.90/535,711,901.18 = 229,484,692.96/x
  3. Step 3: Cross multiply
    388,197,367.90x = 535,711,901.18 × 229,484,692.96
  4. Step 4: Simplify right side
    388,197,367.90x = 122,937,681,154,823,472
  5. Step 5: Solve for x
    x = 122,937,681,154,823,472/388,197,367.90
  6. Step 6: Final answer
    x = 316,688,600.49

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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.