Finding the Fourth Proportional to 124,667,117.60, 172,037,319.12 and 69,663,426.08
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Solution
The fourth proportional to 124,667,117.60, 172,037,319.12 and 69,663,426.08 is: 96,133,682.19
Step by Step Solution
- Step 1: Write the proportion equation
124,667,117.60 : 172,037,319.12 = 69,663,426.08 : x - Step 2: Convert to fraction form
124,667,117.60/172,037,319.12 = 69,663,426.08/x - Step 3: Cross multiply
124,667,117.60x = 172,037,319.12 × 69,663,426.08 - Step 4: Simplify right side
124,667,117.60x = 11,984,709,063,517,490 - Step 5: Solve for x
x = 11,984,709,063,517,490/124,667,117.60 - Step 6: Final answer
x = 96,133,682.19
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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.