Home / 562,720,756.61-776,559,203.67-311,829,339.28

Finding the Fourth Proportional to 562,720,756.61, 776,559,203.67 and 311,829,339.28

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Solution

The fourth proportional to 562,720,756.61, 776,559,203.67 and 311,829,339.28 is: 430,327,014.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,720,756.61 : 776,559,203.67 = 311,829,339.28 : x
  2. Step 2: Convert to fraction form
    562,720,756.61/776,559,203.67 = 311,829,339.28/x
  3. Step 3: Cross multiply
    562,720,756.61x = 776,559,203.67 × 311,829,339.28
  4. Step 4: Simplify right side
    562,720,756.61x = 242,153,943,392,219,008
  5. Step 5: Solve for x
    x = 242,153,943,392,219,008/562,720,756.61
  6. Step 6: Final answer
    x = 430,327,014.86

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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.