Home / 922,021,911.48-1,272,394,045.14-498,635,563.51

Finding the Fourth Proportional to 922,021,911.48, 1,272,394,045.14 and 498,635,563.51

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Solution

The fourth proportional to 922,021,911.48, 1,272,394,045.14 and 498,635,563.51 is: 688,119,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,021,911.48 : 1,272,394,045.14 = 498,635,563.51 : x
  2. Step 2: Convert to fraction form
    922,021,911.48/1,272,394,045.14 = 498,635,563.51/x
  3. Step 3: Cross multiply
    922,021,911.48x = 1,272,394,045.14 × 498,635,563.51
  4. Step 4: Simplify right side
    922,021,911.48x = 634,460,921,706,593,152
  5. Step 5: Solve for x
    x = 634,460,921,706,593,152/922,021,911.48
  6. Step 6: Final answer
    x = 688,119,136.66

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1.5x scale

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.