Home / 76,638,803,384.40-105,760,423,117.68-42,806,592,229.20

Finding the Fourth Proportional to 76,638,803,384.40, 105,760,423,117.68 and 42,806,592,229.20

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Solution

The fourth proportional to 76,638,803,384.40, 105,760,423,117.68 and 42,806,592,229.20 is: 59,072,468,598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,638,803,384.40 : 105,760,423,117.68 = 42,806,592,229.20 : x
  2. Step 2: Convert to fraction form
    76,638,803,384.40/105,760,423,117.68 = 42,806,592,229.20/x
  3. Step 3: Cross multiply
    76,638,803,384.40x = 105,760,423,117.68 × 42,806,592,229.20
  4. Step 4: Simplify right side
    76,638,803,384.40x = 4,527,243,306,386,183,946,240
  5. Step 5: Solve for x
    x = 4,527,243,306,386,183,946,240/76,638,803,384.40
  6. Step 6: Final answer
    x = 59,072,468,598.95

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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.