Home / 787,663,666.83-1,087,037,823.00-448,586,479.55

Finding the Fourth Proportional to 787,663,666.83, 1,087,037,823.00 and 448,586,479.55

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Solution

The fourth proportional to 787,663,666.83, 1,087,037,823.00 and 448,586,479.55 is: 619,084,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,663,666.83 : 1,087,037,823.00 = 448,586,479.55 : x
  2. Step 2: Convert to fraction form
    787,663,666.83/1,087,037,823.00 = 448,586,479.55/x
  3. Step 3: Cross multiply
    787,663,666.83x = 1,087,037,823.00 × 448,586,479.55
  4. Step 4: Simplify right side
    787,663,666.83x = 487,630,470,161,688,192
  5. Step 5: Solve for x
    x = 487,630,470,161,688,192/787,663,666.83
  6. Step 6: Final answer
    x = 619,084,630.53

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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.