Home / 910,700,910.95-1,256,767,677.59-493,013,196.25

Finding the Fourth Proportional to 910,700,910.95, 1,256,767,677.59 and 493,013,196.25

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Solution

The fourth proportional to 910,700,910.95, 1,256,767,677.59 and 493,013,196.25 is: 680,358,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,700,910.95 : 1,256,767,677.59 = 493,013,196.25 : x
  2. Step 2: Convert to fraction form
    910,700,910.95/1,256,767,677.59 = 493,013,196.25/x
  3. Step 3: Cross multiply
    910,700,910.95x = 1,256,767,677.59 × 493,013,196.25
  4. Step 4: Simplify right side
    910,700,910.95x = 619,603,049,666,728,448
  5. Step 5: Solve for x
    x = 619,603,049,666,728,448/910,700,910.95
  6. Step 6: Final answer
    x = 680,358,438.45

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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.