Home / 562,720,758.39-776,559,206.12-311,829,341.07

Finding the Fourth Proportional to 562,720,758.39, 776,559,206.12 and 311,829,341.07

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Solution

The fourth proportional to 562,720,758.39, 776,559,206.12 and 311,829,341.07 is: 430,327,017.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,720,758.39 : 776,559,206.12 = 311,829,341.07 : x
  2. Step 2: Convert to fraction form
    562,720,758.39/776,559,206.12 = 311,829,341.07/x
  3. Step 3: Cross multiply
    562,720,758.39x = 776,559,206.12 × 311,829,341.07
  4. Step 4: Simplify right side
    562,720,758.39x = 242,153,945,546,241,920
  5. Step 5: Solve for x
    x = 242,153,945,546,241,920/562,720,758.39
  6. Step 6: Final answer
    x = 430,327,017.33

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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.