Finding the Fourth Proportional to 342,312,123.84, 472,390,246.56 and 185,679,041.68
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Solution
The fourth proportional to 342,312,123.84, 472,390,246.56 and 185,679,041.68 is: 256,236,814.80
Step by Step Solution
- Step 1: Write the proportion equation
342,312,123.84 : 472,390,246.56 = 185,679,041.68 : x - Step 2: Convert to fraction form
342,312,123.84/472,390,246.56 = 185,679,041.68/x - Step 3: Cross multiply
342,312,123.84x = 472,390,246.56 × 185,679,041.68 - Step 4: Simplify right side
342,312,123.84x = 87,712,968,280,239,728 - Step 5: Solve for x
x = 87,712,968,280,239,728/342,312,123.84 - Step 6: Final answer
x = 256,236,814.80
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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.