Home / 293,011,320,009.20-439,516,980,013.80-72,430,709,961.20

Finding the Fourth Proportional to 293,011,320,009.20, 439,516,980,013.80 and 72,430,709,961.20

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Solution

The fourth proportional to 293,011,320,009.20, 439,516,980,013.80 and 72,430,709,961.20 is: 108,646,064,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,011,320,009.20 : 439,516,980,013.80 = 72,430,709,961.20 : x
  2. Step 2: Convert to fraction form
    293,011,320,009.20/439,516,980,013.80 = 72,430,709,961.20/x
  3. Step 3: Cross multiply
    293,011,320,009.20x = 439,516,980,013.80 × 72,430,709,961.20
  4. Step 4: Simplify right side
    293,011,320,009.20x = 31,834,526,902,402,081,095,680
  5. Step 5: Solve for x
    x = 31,834,526,902,402,081,095,680/293,011,320,009.20
  6. Step 6: Final answer
    x = 108,646,064,941.80

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1.5x scale

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.