Home / 927,038,813.32-1,390,342,492.47-345,047,145.40

Finding the Fourth Proportional to 927,038,813.32, 1,390,342,492.47 and 345,047,145.40

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Solution

The fourth proportional to 927,038,813.32, 1,390,342,492.47 and 345,047,145.40 is: 517,490,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,038,813.32 : 1,390,342,492.47 = 345,047,145.40 : x
  2. Step 2: Convert to fraction form
    927,038,813.32/1,390,342,492.47 = 345,047,145.40/x
  3. Step 3: Cross multiply
    927,038,813.32x = 1,390,342,492.47 × 345,047,145.40
  4. Step 4: Simplify right side
    927,038,813.32x = 479,733,708,148,142,784
  5. Step 5: Solve for x
    x = 479,733,708,148,142,784/927,038,813.32
  6. Step 6: Final answer
    x = 517,490,423.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.