Home / 562,478,821.55-776,210,388.28-311,577,708.23

Finding the Fourth Proportional to 562,478,821.55, 776,210,388.28 and 311,577,708.23

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Solution

The fourth proportional to 562,478,821.55, 776,210,388.28 and 311,577,708.23 is: 429,971,484.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,478,821.55 : 776,210,388.28 = 311,577,708.23 : x
  2. Step 2: Convert to fraction form
    562,478,821.55/776,210,388.28 = 311,577,708.23/x
  3. Step 3: Cross multiply
    562,478,821.55x = 776,210,388.28 × 311,577,708.23
  4. Step 4: Simplify right side
    562,478,821.55x = 241,849,853,880,719,808
  5. Step 5: Solve for x
    x = 241,849,853,880,719,808/562,478,821.55
  6. Step 6: Final answer
    x = 429,971,484.46

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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.