Home / 105,394,430-145,459,588.47-60,731,712.92

Finding the Fourth Proportional to 105,394,430, 145,459,588.47 and 60,731,712.92

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Solution

The fourth proportional to 105,394,430, 145,459,588.47 and 60,731,712.92 is: 83,818,565.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,394,430 : 145,459,588.47 = 60,731,712.92 : x
  2. Step 2: Convert to fraction form
    105,394,430/145,459,588.47 = 60,731,712.92/x
  3. Step 3: Cross multiply
    105,394,430x = 145,459,588.47 × 60,731,712.92
  4. Step 4: Simplify right side
    105,394,430x = 8,834,009,968,421,382
  5. Step 5: Solve for x
    x = 8,834,009,968,421,382/105,394,430
  6. Step 6: Final answer
    x = 83,818,565.82

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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.