Finding the Fourth Proportional to 100,518,746.58, 138,700,760.67 and 56,457,304.97
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Solution
The fourth proportional to 100,518,746.58, 138,700,760.67 and 56,457,304.97 is: 77,902,594.40
Step by Step Solution
- Step 1: Write the proportion equation
100,518,746.58 : 138,700,760.67 = 56,457,304.97 : x - Step 2: Convert to fraction form
100,518,746.58/138,700,760.67 = 56,457,304.97/x - Step 3: Cross multiply
100,518,746.58x = 138,700,760.67 × 56,457,304.97 - Step 4: Simplify right side
100,518,746.58x = 7,830,671,144,023,667 - Step 5: Solve for x
x = 7,830,671,144,023,667/100,518,746.58 - Step 6: Final answer
x = 77,902,594.40
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.