Home / 145,978,563,046.86-219,030,769,988.51-78,812,472,347.08

Finding the Fourth Proportional to 145,978,563,046.86, 219,030,769,988.51 and 78,812,472,347.08

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Solution

The fourth proportional to 145,978,563,046.86, 219,030,769,988.51 and 78,812,472,347.08 is: 118,252,681,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,978,563,046.86 : 219,030,769,988.51 = 78,812,472,347.08 : x
  2. Step 2: Convert to fraction form
    145,978,563,046.86/219,030,769,988.51 = 78,812,472,347.08/x
  3. Step 3: Cross multiply
    145,978,563,046.86x = 219,030,769,988.51 × 78,812,472,347.08
  4. Step 4: Simplify right side
    145,978,563,046.86x = 17,262,356,502,878,426,759,168
  5. Step 5: Solve for x
    x = 17,262,356,502,878,426,759,168/145,978,563,046.86
  6. Step 6: Final answer
    x = 118,252,681,370.33

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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.