Home / 430,806,767,984.94-646,210,152,021.84-143,964,824,476.86

Finding the Fourth Proportional to 430,806,767,984.94, 646,210,152,021.84 and 143,964,824,476.86

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Solution

The fourth proportional to 430,806,767,984.94, 646,210,152,021.84 and 143,964,824,476.86 is: 215,947,236,730.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,806,767,984.94 : 646,210,152,021.84 = 143,964,824,476.86 : x
  2. Step 2: Convert to fraction form
    430,806,767,984.94/646,210,152,021.84 = 143,964,824,476.86/x
  3. Step 3: Cross multiply
    430,806,767,984.94x = 646,210,152,021.84 × 143,964,824,476.86
  4. Step 4: Simplify right side
    430,806,767,984.94x = 93,031,531,110,989,203,243,008
  5. Step 5: Solve for x
    x = 93,031,531,110,989,203,243,008/430,806,767,984.94
  6. Step 6: Final answer
    x = 215,947,236,730.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.